admin 
Facebook co founder Mark Zuckerberg graduated from millionaire to billionaire after one year.
- The richest people in the world found success at various ages.
- Warren Buffett spent over 25 years as a millionaire before becoming a billionaire, while it took Mark Zuckerberg only one year to graduate to billionaire status.
- Tech appears to be the fastest wealth-building industry; the richest people in tech averaged five years as millionaires before becoming billionaires.
Kin Cheung/APNet worth: $38 billion
Source of wealth: Chairman and CEO, Las Vegas Sands
Millionaire age: 27
Billionaire age: 68
Bobby Yip/ReutersNet worth: $30.7 billion
Source of wealth: Real estate
Millionaire age: 36
Billionaire age: 63
Kevin Lamarque/ReutersNet worth: $84.8 billion
Source of wealth: Chairman, Berkshire Hathaway
Millionaire age: 30
Billionaire age: 56
REUTERS/ Edgard GarridoNet worth: $71.1 billion
Source of wealth: Chairman, América Móvil
Millionaire age: 25
Billionaire age: 51
Business Insider/Julie BortNet worth: $60.3 billion
Source of wealth: CEO, Koch Industries
Millionaire age: 31
Billionaire age: 53
AP Photo/Michel Euler, PoolNet worth: $79.3 billion
Source of wealth: Chairman and CEO, LVMH
Millionaire age: 27
Billionaire age: 48
Drew Angerer/Getty ImagesNet worth: $49.9 billion
Source of wealth: CEO, Bloomberg
Millionaire age: 31
Billionaire age: 52
Net worth: $69 billion
Source of wealth: Cofounder, Inditex
Millionaire age: 49
Billionaire age: 65
ReutersNet worth: $41.3 billion
Source of wealth: Director, Walmart stores
Millionaire age: 34
Billionaire age: 48
ReutersNet worth: $33.8 billion
Source of wealth: Chairman, CK Hutchison Holdings
Millionaire age: 30
Billionaire age: 43
Net worth: $60.3 billion
Source of wealth: Executive VP, Koch Industries
Millionaire age: 39
Billionaire age: 49
WalmartNet worth: $41.4 billion
Source of wealth: Walmart inheritance; Chairman and CEO, Arvest Bank Group, Inc.
Millionaire age: 34
Billionaire age: 44
VCG/VCG via Getty ImagesNet worth: $38.2 billion
Source of wealth: Founder and Executive Chairman, Alibaba Group
Millionaire age: 35
Billionaire age: 45
Bobby Yip/ReutersNet worth: $33.6 billion
Source of wealth: Chairman, China Evergrande Group
Millionaire age: 41
Billionaire age: 51
Kirby Lee-USA TODAY Sports/ReutersNet worth: $36.3 billion
Source of wealth: Former CEO, Microsoft; Owner, Los Angeles Clippers
Millionaire age: 30
Billionaire age: 38
APNet worth: $55.4 billion
Source of wealth: Founder andCTO, Oracle
Millionaire age: 42
Billionaire age: 49
John Lamparski/Getty ImagesNet worth: $90.3 billion
Source of wealth: Cofounder, Microsoft
Millionaire age: 26
Billionaire age: 31
Net worth: $47.3 billion
Source of wealth: Cofounder, Google; CEO, Alphabet
Millionaire age: 25
Billionaire age: 30
Ruben Sprich/ReutersNet worth: $46 billion
Source of wealth: Cofounder, Google; President, Alphabet
Millionaire age: 26
Billionaire age: 31
AP/April L. BrownNet worth: $41.1 billion
Source of wealth: Inheritance, Walmart
Millionaire age: 39
Billionaire age: 43
Bobby Yip/ReutersNet worth: $44.1 billion
Source of wealth: Chairman and CEO, Tencent Holdings
Millionaire age: 33
Billionaire age: 36
Reuters/Lindsey WassonNet worth: $114.8 billion
Source of wealth: Founder and CEO, Amazon
Millionaire age: 33
Billionaire age: 35
Mariana Bazo/ReutersNet worth: $61.1 billion
Source of wealth: Cofounder and CEO, Facebook
Millionaire age: 22
Billionaire age: 23
