Finding the Fourth Proportional to 87,786,104.76, 121,186,832.94 and 58,466,230.20
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Solution
The fourth proportional to 87,786,104.76, 121,186,832.94 and 58,466,230.20 is: 80,711,375.58
Step by Step Solution
- Step 1: Write the proportion equation
87,786,104.76 : 121,186,832.94 = 58,466,230.20 : x - Step 2: Convert to fraction form
87,786,104.76/121,186,832.94 = 58,466,230.20/x - Step 3: Cross multiply
87,786,104.76x = 121,186,832.94 × 58,466,230.20 - Step 4: Simplify right side
87,786,104.76x = 7,085,337,271,878,983 - Step 5: Solve for x
x = 7,085,337,271,878,983/87,786,104.76 - Step 6: Final answer
x = 80,711,375.58
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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.