Finding the Fourth Proportional to 147,822,902.13, 203,996,925.45 and 81,747,847.65
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Solution
The fourth proportional to 147,822,902.13, 203,996,925.45 and 81,747,847.65 is: 112,812,760.02
Step by Step Solution
- Step 1: Write the proportion equation
147,822,902.13 : 203,996,925.45 = 81,747,847.65 : x - Step 2: Convert to fraction form
147,822,902.13/203,996,925.45 = 81,747,847.65/x - Step 3: Cross multiply
147,822,902.13x = 203,996,925.45 × 81,747,847.65 - Step 4: Simplify right side
147,822,902.13x = 16,676,309,582,755,008 - Step 5: Solve for x
x = 16,676,309,582,755,008/147,822,902.13 - Step 6: Final answer
x = 112,812,760.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.