Home / 15,113,791-20,856,721.62-8,238,212.92

Finding the Fourth Proportional to 15,113,791, 20,856,721.62 and 8,238,212.92

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Solution

The fourth proportional to 15,113,791, 20,856,721.62 and 8,238,212.92 is: 11,368,564.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113,791 : 20,856,721.62 = 8,238,212.92 : x
  2. Step 2: Convert to fraction form
    15,113,791/20,856,721.62 = 8,238,212.92/x
  3. Step 3: Cross multiply
    15,113,791x = 20,856,721.62 × 8,238,212.92
  4. Step 4: Simplify right side
    15,113,791x = 171,822,113,518,727.34
  5. Step 5: Solve for x
    x = 171,822,113,518,727.34/15,113,791
  6. Step 6: Final answer
    x = 11,368,564.88

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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.