Finding the Fourth Proportional to 2,378,121.18, 3,569,704.28 and 2,106,331.76
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Solution
The fourth proportional to 2,378,121.18, 3,569,704.28 and 2,106,331.76 is: 3,161,731.85
Step by Step Solution
- Step 1: Write the proportion equation
2,378,121.18 : 3,569,704.28 = 2,106,331.76 : x - Step 2: Convert to fraction form
2,378,121.18/3,569,704.28 = 2,106,331.76/x - Step 3: Cross multiply
2,378,121.18x = 3,569,704.28 × 2,106,331.76 - Step 4: Simplify right side
2,378,121.18x = 7,518,981,486,189.24 - Step 5: Solve for x
x = 7,518,981,486,189.24/2,378,121.18 - Step 6: Final answer
x = 3,161,731.85
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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.