Home / 20,274,517.54-30,498,078.12-18,378,295.66

Finding the Fourth Proportional to 20,274,517.54, 30,498,078.12 and 18,378,295.66

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Solution

The fourth proportional to 20,274,517.54, 30,498,078.12 and 18,378,295.66 is: 27,645,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274,517.54 : 30,498,078.12 = 18,378,295.66 : x
  2. Step 2: Convert to fraction form
    20,274,517.54/30,498,078.12 = 18,378,295.66/x
  3. Step 3: Cross multiply
    20,274,517.54x = 30,498,078.12 × 18,378,295.66
  4. Step 4: Simplify right side
    20,274,517.54x = 560,502,696,751,137
  5. Step 5: Solve for x
    x = 560,502,696,751,137/20,274,517.54
  6. Step 6: Final answer
    x = 27,645,673.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.