Finding the Fourth Proportional to 58,138,390.40, 87,207,585.60 and 52,753,121.60
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Solution
The fourth proportional to 58,138,390.40, 87,207,585.60 and 52,753,121.60 is: 79,129,682.40
Step by Step Solution
- Step 1: Write the proportion equation
58,138,390.40 : 87,207,585.60 = 52,753,121.60 : x - Step 2: Convert to fraction form
58,138,390.40/87,207,585.60 = 52,753,121.60/x - Step 3: Cross multiply
58,138,390.40x = 87,207,585.60 × 52,753,121.60 - Step 4: Simplify right side
58,138,390.40x = 4,600,472,367,599,209 - Step 5: Solve for x
x = 4,600,472,367,599,209/58,138,390.40 - Step 6: Final answer
x = 79,129,682.40
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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.