Finding the Fourth Proportional to 127,564,402.75, 176,093,290.79 and 85,772,691.70
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Solution
The fourth proportional to 127,564,402.75, 176,093,290.79 and 85,772,691.70 is: 118,402,902.50
Step by Step Solution
- Step 1: Write the proportion equation
127,564,402.75 : 176,093,290.79 = 85,772,691.70 : x - Step 2: Convert to fraction form
127,564,402.75/176,093,290.79 = 85,772,691.70/x - Step 3: Cross multiply
127,564,402.75x = 176,093,290.79 × 85,772,691.70 - Step 4: Simplify right side
127,564,402.75x = 15,103,995,541,369,120 - Step 5: Solve for x
x = 15,103,995,541,369,120/127,564,402.75 - Step 6: Final answer
x = 118,402,902.50
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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.