Finding the Fourth Proportional to 491,230,863.80, 736,846,295.70 and 261,648,351.80
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Solution
The fourth proportional to 491,230,863.80, 736,846,295.70 and 261,648,351.80 is: 392,472,527.70
Step by Step Solution
- Step 1: Write the proportion equation
491,230,863.80 : 736,846,295.70 = 261,648,351.80 : x - Step 2: Convert to fraction form
491,230,863.80/736,846,295.70 = 261,648,351.80/x - Step 3: Cross multiply
491,230,863.80x = 736,846,295.70 × 261,648,351.80 - Step 4: Simplify right side
491,230,863.80x = 192,794,618,799,840,448 - Step 5: Solve for x
x = 192,794,618,799,840,448/491,230,863.80 - Step 6: Final answer
x = 392,472,527.70
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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.