Finding the Fourth Proportional to 70,982,446.62, 97,956,071.52 and 38,387,398.62
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Solution
The fourth proportional to 70,982,446.62, 97,956,071.52 and 38,387,398.62 is: 52,974,769.73
Step by Step Solution
- Step 1: Write the proportion equation
70,982,446.62 : 97,956,071.52 = 38,387,398.62 : x - Step 2: Convert to fraction form
70,982,446.62/97,956,071.52 = 38,387,398.62/x - Step 3: Cross multiply
70,982,446.62x = 97,956,071.52 × 38,387,398.62 - Step 4: Simplify right side
70,982,446.62x = 3,760,278,764,687,469 - Step 5: Solve for x
x = 3,760,278,764,687,469/70,982,446.62 - Step 6: Final answer
x = 52,974,769.73
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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.