Finding the Fourth Proportional to 72,398,863.71, 99,882,161.96 and 41,442,489.63
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Solution
The fourth proportional to 72,398,863.71, 99,882,161.96 and 41,442,489.63 is: 57,174,453.42
Step by Step Solution
- Step 1: Write the proportion equation
72,398,863.71 : 99,882,161.96 = 41,442,489.63 : x - Step 2: Convert to fraction form
72,398,863.71/99,882,161.96 = 41,442,489.63/x - Step 3: Cross multiply
72,398,863.71x = 99,882,161.96 × 41,442,489.63 - Step 4: Simplify right side
72,398,863.71x = 4,139,365,461,042,068 - Step 5: Solve for x
x = 4,139,365,461,042,068/72,398,863.71 - Step 6: Final answer
x = 57,174,453.42
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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.