Home / 331,868,105.40-498,250,055.70-263,787,670.20

Finding the Fourth Proportional to 331,868,105.40, 498,250,055.70 and 263,787,670.20

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Solution

The fourth proportional to 331,868,105.40, 498,250,055.70 and 263,787,670.20 is: 396,037,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,868,105.40 : 498,250,055.70 = 263,787,670.20 : x
  2. Step 2: Convert to fraction form
    331,868,105.40/498,250,055.70 = 263,787,670.20/x
  3. Step 3: Cross multiply
    331,868,105.40x = 498,250,055.70 × 263,787,670.20
  4. Step 4: Simplify right side
    331,868,105.40x = 131,432,221,370,123,216
  5. Step 5: Solve for x
    x = 131,432,221,370,123,216/331,868,105.40
  6. Step 6: Final answer
    x = 396,037,519.82

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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.