Home / 387,951,542.98-582,003,974.31-142,310,458.60

Finding the Fourth Proportional to 387,951,542.98, 582,003,974.31 and 142,310,458.60

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Solution

The fourth proportional to 387,951,542.98, 582,003,974.31 and 142,310,458.60 is: 213,493,808.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,951,542.98 : 582,003,974.31 = 142,310,458.60 : x
  2. Step 2: Convert to fraction form
    387,951,542.98/582,003,974.31 = 142,310,458.60/x
  3. Step 3: Cross multiply
    387,951,542.98x = 582,003,974.31 × 142,310,458.60
  4. Step 4: Simplify right side
    387,951,542.98x = 82,825,252,491,078,704
  5. Step 5: Solve for x
    x = 82,825,252,491,078,704/387,951,542.98
  6. Step 6: Final answer
    x = 213,493,808.67

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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.