Finding the Fourth Proportional to 660,183,691.20, 990,275,536.80 and 466,473,446.70
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Solution
The fourth proportional to 660,183,691.20, 990,275,536.80 and 466,473,446.70 is: 699,710,170.05
Step by Step Solution
- Step 1: Write the proportion equation
660,183,691.20 : 990,275,536.80 = 466,473,446.70 : x - Step 2: Convert to fraction form
660,183,691.20/990,275,536.80 = 466,473,446.70/x - Step 3: Cross multiply
660,183,691.20x = 990,275,536.80 × 466,473,446.70 - Step 4: Simplify right side
660,183,691.20x = 461,937,242,833,788,672 - Step 5: Solve for x
x = 461,937,242,833,788,672/660,183,691.20 - Step 6: Final answer
x = 699,710,170.05
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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.