Home / 239,571,857.38-330,612,375.45-135,149,605.78

Finding the Fourth Proportional to 239,571,857.38, 330,612,375.45 and 135,149,605.78

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Solution

The fourth proportional to 239,571,857.38, 330,612,375.45 and 135,149,605.78 is: 186,508,268.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,571,857.38 : 330,612,375.45 = 135,149,605.78 : x
  2. Step 2: Convert to fraction form
    239,571,857.38/330,612,375.45 = 135,149,605.78/x
  3. Step 3: Cross multiply
    239,571,857.38x = 330,612,375.45 × 135,149,605.78
  4. Step 4: Simplify right side
    239,571,857.38x = 44,682,132,208,056,848
  5. Step 5: Solve for x
    x = 44,682,132,208,056,848/239,571,857.38
  6. Step 6: Final answer
    x = 186,508,268.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.