Finding the Fourth Proportional to 186,787,414.10, 279,803,207.55 and 129,344,546.90
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Solution
The fourth proportional to 186,787,414.10, 279,803,207.55 and 129,344,546.90 is: 193,755,126.79
Step by Step Solution
- Step 1: Write the proportion equation
186,787,414.10 : 279,803,207.55 = 129,344,546.90 : x - Step 2: Convert to fraction form
186,787,414.10/279,803,207.55 = 129,344,546.90/x - Step 3: Cross multiply
186,787,414.10x = 279,803,207.55 × 129,344,546.90 - Step 4: Simplify right side
186,787,414.10x = 36,191,019,101,721,416 - Step 5: Solve for x
x = 36,191,019,101,721,416/186,787,414.10 - Step 6: Final answer
x = 193,755,126.79
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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.