Finding the Fourth Proportional to 87,969,554.88, 121,397,948.64 and 51,293,042.88
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Solution
The fourth proportional to 87,969,554.88, 121,397,948.64 and 51,293,042.88 is: 70,784,377.55
Step by Step Solution
- Step 1: Write the proportion equation
87,969,554.88 : 121,397,948.64 = 51,293,042.88 : x - Step 2: Convert to fraction form
87,969,554.88/121,397,948.64 = 51,293,042.88/x - Step 3: Cross multiply
87,969,554.88x = 121,397,948.64 × 51,293,042.88 - Step 4: Simplify right side
87,969,554.88x = 6,226,870,185,135,558 - Step 5: Solve for x
x = 6,226,870,185,135,558/87,969,554.88 - Step 6: Final answer
x = 70,784,377.55
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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.