I'm not sure I follow your math. Facebook had the following figures at the close of 2017 per https://investor.fb.com/investor-news/press-release-details/2018/Fa

I'm not sure I follow your math. Facebook had the following figures at the close of 2017 per https://investor.fb.com/investor-news/press-release-details/2018/Facebook-Reports-Fourth-Quarter-and-Full-Year-2017-Results/default.aspx https://investor.fb.com/investor-news/press-release-details/...: Earnings (Q4 2017): $4B Earnings (Y2017): $16B Revenue (Q4 2017): $13B Revenue (Y2017): $40B So, maybe you're confusing revenue with earnings (net income) and a quarter (3 months) with the entire year (12 months). Because $90B is over 20x FB's Q4 2017 earnings and over 5x their entire 2017 earnings.