Home / 13,218,761.52-18,231,606.36-9,561,397.68

Finding the Fourth Proportional to 13,218,761.52, 18,231,606.36 and 9,561,397.68

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Solution

The fourth proportional to 13,218,761.52, 18,231,606.36 and 9,561,397.68 is: 13,187,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218,761.52 : 18,231,606.36 = 9,561,397.68 : x
  2. Step 2: Convert to fraction form
    13,218,761.52/18,231,606.36 = 9,561,397.68/x
  3. Step 3: Cross multiply
    13,218,761.52x = 18,231,606.36 × 9,561,397.68
  4. Step 4: Simplify right side
    13,218,761.52x = 174,319,638,753,177.22
  5. Step 5: Solve for x
    x = 174,319,638,753,177.22/13,218,761.52
  6. Step 6: Final answer
    x = 13,187,289.78

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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.