Finding the Fourth Proportional to 261,468,281.70, 392,202,422.55 and 159,431,609.70
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Solution
The fourth proportional to 261,468,281.70, 392,202,422.55 and 159,431,609.70 is: 239,147,414.55
Step by Step Solution
- Step 1: Write the proportion equation
261,468,281.70 : 392,202,422.55 = 159,431,609.70 : x - Step 2: Convert to fraction form
261,468,281.70/392,202,422.55 = 159,431,609.70/x - Step 3: Cross multiply
261,468,281.70x = 392,202,422.55 × 159,431,609.70 - Step 4: Simplify right side
261,468,281.70x = 62,529,463,555,386,072 - Step 5: Solve for x
x = 62,529,463,555,386,072/261,468,281.70 - Step 6: Final answer
x = 239,147,414.55
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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.