Finding the Fourth Proportional to 491,230,852.80, 736,846,279.20 and 261,648,340.80
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Solution
The fourth proportional to 491,230,852.80, 736,846,279.20 and 261,648,340.80 is: 392,472,511.20
Step by Step Solution
- Step 1: Write the proportion equation
491,230,852.80 : 736,846,279.20 = 261,648,340.80 : x - Step 2: Convert to fraction form
491,230,852.80/736,846,279.20 = 261,648,340.80/x - Step 3: Cross multiply
491,230,852.80x = 736,846,279.20 × 261,648,340.80 - Step 4: Simplify right side
491,230,852.80x = 192,794,606,377,333,568 - Step 5: Solve for x
x = 192,794,606,377,333,568/491,230,852.80 - Step 6: Final answer
x = 392,472,511.20
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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.