Finding the Fourth Proportional to 88,128,902.80, 132,193,354.20 and 82,156,934.80
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Solution
The fourth proportional to 88,128,902.80, 132,193,354.20 and 82,156,934.80 is: 123,235,402.20
Step by Step Solution
- Step 1: Write the proportion equation
88,128,902.80 : 132,193,354.20 = 82,156,934.80 : x - Step 2: Convert to fraction form
88,128,902.80/132,193,354.20 = 82,156,934.80/x - Step 3: Cross multiply
88,128,902.80x = 132,193,354.20 × 82,156,934.80 - Step 4: Simplify right side
88,128,902.80x = 10,860,600,782,002,706 - Step 5: Solve for x
x = 10,860,600,782,002,706/88,128,902.80 - Step 6: Final answer
x = 123,235,402.20
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1.5x scale
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.