Home / 20,427,826.92-28,190,387.94-11,135,414.76

Finding the Fourth Proportional to 20,427,826.92, 28,190,387.94 and 11,135,414.76

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Solution

The fourth proportional to 20,427,826.92, 28,190,387.94 and 11,135,414.76 is: 15,366,865.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427,826.92 : 28,190,387.94 = 11,135,414.76 : x
  2. Step 2: Convert to fraction form
    20,427,826.92/28,190,387.94 = 11,135,414.76/x
  3. Step 3: Cross multiply
    20,427,826.92x = 28,190,387.94 × 11,135,414.76
  4. Step 4: Simplify right side
    20,427,826.92x = 313,911,661,957,202
  5. Step 5: Solve for x
    x = 313,911,661,957,202/20,427,826.92
  6. Step 6: Final answer
    x = 15,366,865.17

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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.