Home / 20,650,938.12-28,498,309.22-11,359,215.12

Finding the Fourth Proportional to 20,650,938.12, 28,498,309.22 and 11,359,215.12

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Solution

The fourth proportional to 20,650,938.12, 28,498,309.22 and 11,359,215.12 is: 15,675,724.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650,938.12 : 28,498,309.22 = 11,359,215.12 : x
  2. Step 2: Convert to fraction form
    20,650,938.12/28,498,309.22 = 11,359,215.12/x
  3. Step 3: Cross multiply
    20,650,938.12x = 28,498,309.22 × 11,359,215.12
  4. Step 4: Simplify right side
    20,650,938.12x = 323,718,424,929,463.31
  5. Step 5: Solve for x
    x = 323,718,424,929,463.31/20,650,938.12
  6. Step 6: Final answer
    x = 15,675,724.91

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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.