Finding the Fourth Proportional to 442,687,862.40, 664,031,793.60 and 135,979,483.20
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Solution
The fourth proportional to 442,687,862.40, 664,031,793.60 and 135,979,483.20 is: 203,969,224.80
Step by Step Solution
- Step 1: Write the proportion equation
442,687,862.40 : 664,031,793.60 = 135,979,483.20 : x - Step 2: Convert to fraction form
442,687,862.40/664,031,793.60 = 135,979,483.20/x - Step 3: Cross multiply
442,687,862.40x = 664,031,793.60 × 135,979,483.20 - Step 4: Simplify right side
442,687,862.40x = 90,294,700,122,097,056 - Step 5: Solve for x
x = 90,294,700,122,097,056/442,687,862.40 - Step 6: Final answer
x = 203,969,224.80
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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.