Jeff Bezos and Elon Musk are two of the richest business leaders in the world, with respective net worths of $202.5 billion and $261 billion. But that's not the only thing they have in common.

The 60-year-old Amazon founder and 53-year-old Tesla CEO happen to be the oldest children in their families.

Related: How Being the Oldest Child Impacts Your Success in Business and Life

Bezos has a younger brother named Mark and a sister named Christina, both of whom were early investors in Amazon; they bought 30,000 shares apiece for........

© Entrepreneur