Home / 20,442,407.19-28,210,854.52-11,149,974.90

Finding the Fourth Proportional to 20,442,407.19, 28,210,854.52 and 11,149,974.90

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Solution

The fourth proportional to 20,442,407.19, 28,210,854.52 and 11,149,974.90 is: 15,387,146.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442,407.19 : 28,210,854.52 = 11,149,974.90 : x
  2. Step 2: Convert to fraction form
    20,442,407.19/28,210,854.52 = 11,149,974.90/x
  3. Step 3: Cross multiply
    20,442,407.19x = 28,210,854.52 × 11,149,974.90
  4. Step 4: Simplify right side
    20,442,407.19x = 314,550,319,898,817.94
  5. Step 5: Solve for x
    x = 314,550,319,898,817.94/20,442,407.19
  6. Step 6: Final answer
    x = 15,387,146.78

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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.