Finding the Fourth Proportional to 87,717,473.51, 121,012,115.40 and 52,890,816.17
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Solution
The fourth proportional to 87,717,473.51, 121,012,115.40 and 52,890,816.17 is: 72,966,414.71
Step by Step Solution
- Step 1: Write the proportion equation
87,717,473.51 : 121,012,115.40 = 52,890,816.17 : x - Step 2: Convert to fraction form
87,717,473.51/121,012,115.40 = 52,890,816.17/x - Step 3: Cross multiply
87,717,473.51x = 121,012,115.40 × 52,890,816.17 - Step 4: Simplify right side
87,717,473.51x = 6,400,429,549,359,166 - Step 5: Solve for x
x = 6,400,429,549,359,166/87,717,473.51 - Step 6: Final answer
x = 72,966,414.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.