Finding the Fourth Proportional to 321,797,107.20, 482,695,660.80 and 117,471,820.80
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Solution
The fourth proportional to 321,797,107.20, 482,695,660.80 and 117,471,820.80 is: 176,207,731.20
Step by Step Solution
- Step 1: Write the proportion equation
321,797,107.20 : 482,695,660.80 = 117,471,820.80 : x - Step 2: Convert to fraction form
321,797,107.20/482,695,660.80 = 117,471,820.80/x - Step 3: Cross multiply
321,797,107.20x = 482,695,660.80 × 117,471,820.80 - Step 4: Simplify right side
321,797,107.20x = 56,703,138,166,435,184 - Step 5: Solve for x
x = 56,703,138,166,435,184/321,797,107.20 - Step 6: Final answer
x = 176,207,731.20
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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.