Finding the Fourth Proportional to 852,119,771.80, 1,278,179,657.70 and 489,322,715.80
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Solution
The fourth proportional to 852,119,771.80, 1,278,179,657.70 and 489,322,715.80 is: 733,984,073.70
Step by Step Solution
- Step 1: Write the proportion equation
852,119,771.80 : 1,278,179,657.70 = 489,322,715.80 : x - Step 2: Convert to fraction form
852,119,771.80/1,278,179,657.70 = 489,322,715.80/x - Step 3: Cross multiply
852,119,771.80x = 1,278,179,657.70 × 489,322,715.80 - Step 4: Simplify right side
852,119,771.80x = 625,442,341,386,078,464 - Step 5: Solve for x
x = 625,442,341,386,078,464/852,119,771.80 - Step 6: Final answer
x = 733,984,073.70
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1.5x scale
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.