Finding the Fourth Proportional to 57,785,877.18, 79,744,491.23 and 31,679,834.49
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Solution
The fourth proportional to 57,785,877.18, 79,744,491.23 and 31,679,834.49 is: 43,718,161.02
Step by Step Solution
- Step 1: Write the proportion equation
57,785,877.18 : 79,744,491.23 = 31,679,834.49 : x - Step 2: Convert to fraction form
57,785,877.18/79,744,491.23 = 31,679,834.49/x - Step 3: Cross multiply
57,785,877.18x = 79,744,491.23 × 31,679,834.49 - Step 4: Simplify right side
57,785,877.18x = 2,526,292,283,497,257 - Step 5: Solve for x
x = 2,526,292,283,497,257/57,785,877.18 - Step 6: Final answer
x = 43,718,161.02
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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.