Finding the Fourth Proportional to 100,687,523.60, 151,031,285.40 and 84,531,717.20
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Solution
The fourth proportional to 100,687,523.60, 151,031,285.40 and 84,531,717.20 is: 126,797,575.80
Step by Step Solution
- Step 1: Write the proportion equation
100,687,523.60 : 151,031,285.40 = 84,531,717.20 : x - Step 2: Convert to fraction form
100,687,523.60/151,031,285.40 = 84,531,717.20/x - Step 3: Cross multiply
100,687,523.60x = 151,031,285.40 × 84,531,717.20 - Step 4: Simplify right side
100,687,523.60x = 12,766,933,905,785,290 - Step 5: Solve for x
x = 12,766,933,905,785,290/100,687,523.60 - Step 6: Final answer
x = 126,797,575.80
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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.