Home / 331,868,115.40-498,250,070.70-263,787,680.20

Finding the Fourth Proportional to 331,868,115.40, 498,250,070.70 and 263,787,680.20

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Solution

The fourth proportional to 331,868,115.40, 498,250,070.70 and 263,787,680.20 is: 396,037,534.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,868,115.40 : 498,250,070.70 = 263,787,680.20 : x
  2. Step 2: Convert to fraction form
    331,868,115.40/498,250,070.70 = 263,787,680.20/x
  3. Step 3: Cross multiply
    331,868,115.40x = 498,250,070.70 × 263,787,680.20
  4. Step 4: Simplify right side
    331,868,115.40x = 131,432,230,309,438,976
  5. Step 5: Solve for x
    x = 131,432,230,309,438,976/331,868,115.40
  6. Step 6: Final answer
    x = 396,037,534.82

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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.