Finding the Fourth Proportional to 129,452,588.71, 194,177,552.33 and 74,830,418.12
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Solution
The fourth proportional to 129,452,588.71, 194,177,552.33 and 74,830,418.12 is: 112,244,857.95
Step by Step Solution
- Step 1: Write the proportion equation
129,452,588.71 : 194,177,552.33 = 74,830,418.12 : x - Step 2: Convert to fraction form
129,452,588.71/194,177,552.33 = 74,830,418.12/x - Step 3: Cross multiply
129,452,588.71x = 194,177,552.33 × 74,830,418.12 - Step 4: Simplify right side
129,452,588.71x = 14,530,387,431,044,602 - Step 5: Solve for x
x = 14,530,387,431,044,602/129,452,588.71 - Step 6: Final answer
x = 112,244,857.95
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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.