Home / 398,250,508.20-597,459,743.10-168,101,125.80

Finding the Fourth Proportional to 398,250,508.20, 597,459,743.10 and 168,101,125.80

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Solution

The fourth proportional to 398,250,508.20, 597,459,743.10 and 168,101,125.80 is: 252,187,136.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,250,508.20 : 597,459,743.10 = 168,101,125.80 : x
  2. Step 2: Convert to fraction form
    398,250,508.20/597,459,743.10 = 168,101,125.80/x
  3. Step 3: Cross multiply
    398,250,508.20x = 597,459,743.10 × 168,101,125.80
  4. Step 4: Simplify right side
    398,250,508.20x = 100,433,655,435,288,800
  5. Step 5: Solve for x
    x = 100,433,655,435,288,800/398,250,508.20
  6. Step 6: Final answer
    x = 252,187,136.91

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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.