49: Bernard Arnault
Net Value: $83.2 billion
Country: France
Source of Revenue: Mixed
Occupation: President, Groupe Arnault
48: Lakshmi Mittal
Net Value: $18.4 billion
Country: India
Source of Revenue: Mixed
Occupation: Chairman, ArcelorMittal
47: Cai Hongzhu
Net Value: $11.2 billion
Country: China
Source of Revenue: Self-made
Occupation: Chairman, Daohuaxiang Group
46: Gennady Timchenko
Net Value: $12.1 billion
Country: Russia
Source of Revenue: Self-made
Occupation: Founder, Volga Group
45: Paul Allen
Net Value: $24.1 billion
Country: US
Source of Revenue: Self-made
Occupation: Chairman, Vulcan
44: Wang Jianlin
Net Value: $17.9 billion
Country: China
Source of Revenue: Self-made
Occupation: Chairman, Dalian Wanda Group
43: Bill Gates
Net Value: $102.1 billion
Country: US
Source of Revenue: Self-made
Occupation: Co-Chairman, Bill & Melinda Gates Foundation
42: Steve Ballmer
Net Value: $47 billion
Country: US
Source of Revenue: Self-made
Occupation: Owner, Los Angeles Clippers
41: Mukesh Ambani
Net Value: $38.5 billion
Country: India
Source of Revenue: Mixed
Occupation: Chairman, Reliance Industries
40: Xu Jiayin
Net Value: $27.7 billion
Country: China
Source of Revenue: Self-made
Occupation: Chairman, Evergrande Real Estate Group