Home / 638,610,010.20-957,915,015.30-229,613,016.60

Finding the Fourth Proportional to 638,610,010.20, 957,915,015.30 and 229,613,016.60

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Solution

The fourth proportional to 638,610,010.20, 957,915,015.30 and 229,613,016.60 is: 344,419,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,610,010.20 : 957,915,015.30 = 229,613,016.60 : x
  2. Step 2: Convert to fraction form
    638,610,010.20/957,915,015.30 = 229,613,016.60/x
  3. Step 3: Cross multiply
    638,610,010.20x = 957,915,015.30 × 229,613,016.60
  4. Step 4: Simplify right side
    638,610,010.20x = 219,949,756,309,468,128
  5. Step 5: Solve for x
    x = 219,949,756,309,468,128/638,610,010.20
  6. Step 6: Final answer
    x = 344,419,524.90

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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.