Home / 321,935,743.20-482,929,858.80-137,704,612.80

Finding the Fourth Proportional to 321,935,743.20, 482,929,858.80 and 137,704,612.80

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Solution

The fourth proportional to 321,935,743.20, 482,929,858.80 and 137,704,612.80 is: 206,568,144.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,935,743.20 : 482,929,858.80 = 137,704,612.80 : x
  2. Step 2: Convert to fraction form
    321,935,743.20/482,929,858.80 = 137,704,612.80/x
  3. Step 3: Cross multiply
    321,935,743.20x = 482,929,858.80 × 137,704,612.80
  4. Step 4: Simplify right side
    321,935,743.20x = 66,501,669,215,612,680
  5. Step 5: Solve for x
    x = 66,501,669,215,612,680/321,935,743.20
  6. Step 6: Final answer
    x = 206,568,144.79

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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.