1. **State the problem:** We need to add all the given numbers together. 2. **List the numbers:** $$84000000, 91000000, 98000000, 105000000, 112000000, 119000000, 126000000, 133000000, 137000000, 170000000, 187000000, 195000000, 204000000, 221000000, 238000000, 255000000, 272000000, 289000000, 61200000, 64600000, 34000000$$ 3. **Add the numbers step-by-step:** $$84000000 + 91000000 = 175000000$$ $$175000000 + 98000000 = 273000000$$ $$273000000 + 105000000 = 378000000$$ $$378000000 + 112000000 = 490000000$$ $$490000000 + 119000000 = 609000000$$ $$609000000 + 126000000 = 735000000$$ $$735000000 + 133000000 = 868000000$$ $$868000000 + 137000000 = 1005000000$$ $$1005000000 + 170000000 = 1175000000$$ $$1175000000 + 187000000 = 1362000000$$ $$1362000000 + 195000000 = 1557000000$$ $$1557000000 + 204000000 = 1761000000$$ $$1761000000 + 221000000 = 1982000000$$ $$1982000000 + 238000000 = 2220000000$$ $$2220000000 + 255000000 = 2475000000$$ $$2475000000 + 272000000 = 2747000000$$ $$2747000000 + 289000000 = 3036000000$$ $$3036000000 + 61200000 = 3097200000$$ $$3097200000 + 64600000 = 3161800000$$ $$3161800000 + 34000000 = 3195800000$$ 4. **Final answer:** $$\boxed{3195800000}$$ This is the sum of all the given numbers.