Finding the Fourth Proportional to 87,389,624.87, 120,597,088.97 and 48,231,401.48
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Solution
The fourth proportional to 87,389,624.87, 120,597,088.97 and 48,231,401.48 is: 66,559,006.56
Step by Step Solution
- Step 1: Write the proportion equation
87,389,624.87 : 120,597,088.97 = 48,231,401.48 : x - Step 2: Convert to fraction form
87,389,624.87/120,597,088.97 = 48,231,401.48/x - Step 3: Cross multiply
87,389,624.87x = 120,597,088.97 × 48,231,401.48 - Step 4: Simplify right side
87,389,624.87x = 5,816,566,614,948,943 - Step 5: Solve for x
x = 5,816,566,614,948,943/87,389,624.87 - Step 6: Final answer
x = 66,559,006.56
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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.