Home / 18,172,288.87-25,077,836.60-9,912,531.15

Finding the Fourth Proportional to 18,172,288.87, 25,077,836.60 and 9,912,531.15

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Solution

The fourth proportional to 18,172,288.87, 25,077,836.60 and 9,912,531.15 is: 13,679,335.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,172,288.87 : 25,077,836.60 = 9,912,531.15 : x
  2. Step 2: Convert to fraction form
    18,172,288.87/25,077,836.60 = 9,912,531.15/x
  3. Step 3: Cross multiply
    18,172,288.87x = 25,077,836.60 × 9,912,531.15
  4. Step 4: Simplify right side
    18,172,288.87x = 248,584,836,472,110.12
  5. Step 5: Solve for x
    x = 248,584,836,472,110.12/18,172,288.87
  6. Step 6: Final answer
    x = 13,679,335.52

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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.