Finding the Fourth Proportional to 113,324,648.20, 169,986,972.30 and 88,665,785.80
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Solution
The fourth proportional to 113,324,648.20, 169,986,972.30 and 88,665,785.80 is: 132,998,678.70
Step by Step Solution
- Step 1: Write the proportion equation
113,324,648.20 : 169,986,972.30 = 88,665,785.80 : x - Step 2: Convert to fraction form
113,324,648.20/169,986,972.30 = 88,665,785.80/x - Step 3: Cross multiply
113,324,648.20x = 169,986,972.30 × 88,665,785.80 - Step 4: Simplify right side
113,324,648.20x = 15,072,028,474,742,334 - Step 5: Solve for x
x = 15,072,028,474,742,334/113,324,648.20 - Step 6: Final answer
x = 132,998,678.70
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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.