Finding the Fourth Proportional to 87,959,557.48, 121,384,204.32 and 48,801,240.80
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Solution
The fourth proportional to 87,959,557.48, 121,384,204.32 and 48,801,240.80 is: 67,345,720.62
Step by Step Solution
- Step 1: Write the proportion equation
87,959,557.48 : 121,384,204.32 = 48,801,240.80 : x - Step 2: Convert to fraction form
87,959,557.48/121,384,204.32 = 48,801,240.80/x - Step 3: Cross multiply
87,959,557.48x = 121,384,204.32 × 48,801,240.80 - Step 4: Simplify right side
87,959,557.48x = 5,923,699,784,336,720 - Step 5: Solve for x
x = 5,923,699,784,336,720/87,959,557.48 - Step 6: Final answer
x = 67,345,720.62
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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.