Finding the Fourth Proportional to 75,212,046.91, 103,754,425.80 and 49,121,836.75
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Solution
The fourth proportional to 75,212,046.91, 103,754,425.80 and 49,121,836.75 is: 67,763,186.56
Step by Step Solution
- Step 1: Write the proportion equation
75,212,046.91 : 103,754,425.80 = 49,121,836.75 : x - Step 2: Convert to fraction form
75,212,046.91/103,754,425.80 = 49,121,836.75/x - Step 3: Cross multiply
75,212,046.91x = 103,754,425.80 × 49,121,836.75 - Step 4: Simplify right side
75,212,046.91x = 5,096,607,966,237,588 - Step 5: Solve for x
x = 5,096,607,966,237,588/75,212,046.91 - Step 6: Final answer
x = 67,763,186.56
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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.