Finding the Fourth Proportional to 221,436,857.80, 332,155,286.70 and 98,614,937.80
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Solution
The fourth proportional to 221,436,857.80, 332,155,286.70 and 98,614,937.80 is: 147,922,406.70
Step by Step Solution
- Step 1: Write the proportion equation
221,436,857.80 : 332,155,286.70 = 98,614,937.80 : x - Step 2: Convert to fraction form
221,436,857.80/332,155,286.70 = 98,614,937.80/x - Step 3: Cross multiply
221,436,857.80x = 332,155,286.70 × 98,614,937.80 - Step 4: Simplify right side
221,436,857.80x = 32,755,472,937,861,664 - Step 5: Solve for x
x = 32,755,472,937,861,664/221,436,857.80 - Step 6: Final answer
x = 147,922,406.70
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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.