Finding the Fourth Proportional to 129,035,937.80, 193,553,906.70 and 88,161,134.60
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Solution
The fourth proportional to 129,035,937.80, 193,553,906.70 and 88,161,134.60 is: 132,241,701.90
Step by Step Solution
- Step 1: Write the proportion equation
129,035,937.80 : 193,553,906.70 = 88,161,134.60 : x - Step 2: Convert to fraction form
129,035,937.80/193,553,906.70 = 88,161,134.60/x - Step 3: Cross multiply
129,035,937.80x = 193,553,906.70 × 88,161,134.60 - Step 4: Simplify right side
129,035,937.80x = 17,063,932,020,934,540 - Step 5: Solve for x
x = 17,063,932,020,934,540/129,035,937.80 - Step 6: Final answer
x = 132,241,701.90
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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.