Finding the Fourth Proportional to 7,256,491.59, 10,013,828.79 and 3,948,672.99
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Solution
The fourth proportional to 7,256,491.59, 10,013,828.79 and 3,948,672.99 is: 5,449,098.20
Step by Step Solution
- Step 1: Write the proportion equation
7,256,491.59 : 10,013,828.79 = 3,948,672.99 : x - Step 2: Convert to fraction form
7,256,491.59/10,013,828.79 = 3,948,672.99/x - Step 3: Cross multiply
7,256,491.59x = 10,013,828.79 × 3,948,672.99 - Step 4: Simplify right side
7,256,491.59x = 39,541,335,269,557.38 - Step 5: Solve for x
x = 39,541,335,269,557.38/7,256,491.59 - Step 6: Final answer
x = 5,449,098.20
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.