Susan Wojcicki, the CEO of YouTube, provided the garage space where Google was founded in 1998.

Wojcicki joined Google as its 16th employee, and rose up the ranks to become YouTube's CEO in 2014.

Here's a glimpse at the life of 51-year-old Susan Wojcicki, who is worth nearly $500 million.

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Most landlords only hope their renters pay on time, keep a tidy space, and don't disturb the neighbors.

But Susan Wojcicki's renters — Google cofounders Larry Page and Sergey Brin — ended up offering up a bit more: the chance to become employee No. 16 in 1998 at a young search-engine startup called Google.

Of course, it's taken more than this incredible circumstance for Wojcicki to rise in the ranks at Google. From expanding the company's ad business to persuading its founders to purchase an up-and-coming video-sharing service called YouTube, Wojcicki has played a vital role in Google's becoming one of the world's most valuable companies.

Here's a glimpse at Wojcicki's life and her rise at Google from employee No. 16 to YouTube's CEO: