Home / 18,712,439.72-25,823,245.38-10,127,735.72

Finding the Fourth Proportional to 18,712,439.72, 25,823,245.38 and 10,127,735.72

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Solution

The fourth proportional to 18,712,439.72, 25,823,245.38 and 10,127,735.72 is: 13,976,317.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712,439.72 : 25,823,245.38 = 10,127,735.72 : x
  2. Step 2: Convert to fraction form
    18,712,439.72/25,823,245.38 = 10,127,735.72/x
  3. Step 3: Cross multiply
    18,712,439.72x = 25,823,245.38 × 10,127,735.72
  4. Step 4: Simplify right side
    18,712,439.72x = 261,531,004,641,350.97
  5. Step 5: Solve for x
    x = 261,531,004,641,350.97/18,712,439.72
  6. Step 6: Final answer
    x = 13,976,317.82

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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.