Finding the Fourth Proportional to 87,227,325.40, 130,589,045.70 and 53,215,101.40
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Solution
The fourth proportional to 87,227,325.40, 130,589,045.70 and 53,215,101.40 is: 79,668,948.66
Step by Step Solution
- Step 1: Write the proportion equation
87,227,325.40 : 130,589,045.70 = 53,215,101.40 : x - Step 2: Convert to fraction form
87,227,325.40/130,589,045.70 = 53,215,101.40/x - Step 3: Cross multiply
87,227,325.40x = 130,589,045.70 × 53,215,101.40 - Step 4: Simplify right side
87,227,325.40x = 6,949,309,308,654,734 - Step 5: Solve for x
x = 6,949,309,308,654,734/87,227,325.40 - Step 6: Final answer
x = 79,668,948.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.