Home / 239,565,859.20-330,601,882.19-129,557,572.20

Finding the Fourth Proportional to 239,565,859.20, 330,601,882.19 and 129,557,572.20

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Solution

The fourth proportional to 239,565,859.20, 330,601,882.19 and 129,557,572.20 is: 178,789,988.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,565,859.20 : 330,601,882.19 = 129,557,572.20 : x
  2. Step 2: Convert to fraction form
    239,565,859.20/330,601,882.19 = 129,557,572.20/x
  3. Step 3: Cross multiply
    239,565,859.20x = 330,601,882.19 × 129,557,572.20
  4. Step 4: Simplify right side
    239,565,859.20x = 42,831,977,220,639,032
  5. Step 5: Solve for x
    x = 42,831,977,220,639,032/239,565,859.20
  6. Step 6: Final answer
    x = 178,789,988.54

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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.