Finding the Fourth Proportional to 87,952,552.92, 121,377,766.32 and 53,138,517.42
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Solution
The fourth proportional to 87,952,552.92, 121,377,766.32 and 53,138,517.42 is: 73,333,113.55
Step by Step Solution
- Step 1: Write the proportion equation
87,952,552.92 : 121,377,766.32 = 53,138,517.42 : x - Step 2: Convert to fraction form
87,952,552.92/121,377,766.32 = 53,138,517.42/x - Step 3: Cross multiply
87,952,552.92x = 121,377,766.32 × 53,138,517.42 - Step 4: Simplify right side
87,952,552.92x = 6,449,834,549,996,009 - Step 5: Solve for x
x = 6,449,834,549,996,009/87,952,552.92 - Step 6: Final answer
x = 73,333,113.55
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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.