USA GDP in the fourth quarter of 2018 $20 870 000 000 000
https://www.bea.gov/news/2019/initial-gross-domestic-product-4th-quarter-and-annual-2018

BTC market cap: $92 612 555 685
https://coinmarketcap.com/

Gold supply around 190 040 tonnes, with price  41 035 600 USD per tonne
https://www.gold.org/about-gold/gold-supply/gold-mining/how-much-gold
Which will give us 190 040 * 41 035 600 and it will be roughly $7 798 405 425 000

So
20 870 000 000 000
 -7 798 405 425 000
      -92 612 555 685

So we find just another 12 trillions and we could move on and find the money for the rest of the world.