Home / 18,131,120-25,043,414.24-13,161,629.92

Finding the Fourth Proportional to 18,131,120, 25,043,414.24 and 13,161,629.92

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Solution

The fourth proportional to 18,131,120, 25,043,414.24 and 13,161,629.92 is: 18,179,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131,120 : 25,043,414.24 = 13,161,629.92 : x
  2. Step 2: Convert to fraction form
    18,131,120/25,043,414.24 = 13,161,629.92/x
  3. Step 3: Cross multiply
    18,131,120x = 25,043,414.24 × 13,161,629.92
  4. Step 4: Simplify right side
    18,131,120x = 329,612,150,160,138.06
  5. Step 5: Solve for x
    x = 329,612,150,160,138.06/18,131,120
  6. Step 6: Final answer
    x = 18,179,359.59

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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.