Finding the Fourth Proportional to 378,047,889.97, 567,155,121.72 and 115,734,424.99
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Solution
The fourth proportional to 378,047,889.97, 567,155,121.72 and 115,734,424.99 is: 173,627,134.64
Step by Step Solution
- Step 1: Write the proportion equation
378,047,889.97 : 567,155,121.72 = 115,734,424.99 : x - Step 2: Convert to fraction form
378,047,889.97/567,155,121.72 = 115,734,424.99/x - Step 3: Cross multiply
378,047,889.97x = 567,155,121.72 × 115,734,424.99 - Step 4: Simplify right side
378,047,889.97x = 65,639,371,892,397,664 - Step 5: Solve for x
x = 65,639,371,892,397,664/378,047,889.97 - Step 6: Final answer
x = 173,627,134.64
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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.