Finding the Fourth Proportional to 3,989,088,227.80, 5,983,632,341.70 and 1,812,305,891.80
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Solution
The fourth proportional to 3,989,088,227.80, 5,983,632,341.70 and 1,812,305,891.80 is: 2,718,458,837.70
Step by Step Solution
- Step 1: Write the proportion equation
3,989,088,227.80 : 5,983,632,341.70 = 1,812,305,891.80 : x - Step 2: Convert to fraction form
3,989,088,227.80/5,983,632,341.70 = 1,812,305,891.80/x - Step 3: Cross multiply
3,989,088,227.80x = 5,983,632,341.70 × 1,812,305,891.80 - Step 4: Simplify right side
3,989,088,227.80x = 10,844,172,147,227,940,864 - Step 5: Solve for x
x = 10,844,172,147,227,940,864/3,989,088,227.80 - Step 6: Final answer
x = 2,718,458,837.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.