Finding the Fourth Proportional to 354,719,987.46, 489,517,691.09 and 195,946,821.24
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Solution
The fourth proportional to 354,719,987.46, 489,517,691.09 and 195,946,821.24 is: 270,408,882.78
Step by Step Solution
- Step 1: Write the proportion equation
354,719,987.46 : 489,517,691.09 = 195,946,821.24 : x - Step 2: Convert to fraction form
354,719,987.46/489,517,691.09 = 195,946,821.24/x - Step 3: Cross multiply
354,719,987.46x = 489,517,691.09 × 195,946,821.24 - Step 4: Simplify right side
354,719,987.46x = 95,919,435,508,662,272 - Step 5: Solve for x
x = 95,919,435,508,662,272/354,719,987.46 - Step 6: Final answer
x = 270,408,882.78
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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.