Home / 20,188,286.28-27,859,948.20-11,486,458.68

Finding the Fourth Proportional to 20,188,286.28, 27,859,948.20 and 11,486,458.68

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Solution

The fourth proportional to 20,188,286.28, 27,859,948.20 and 11,486,458.68 is: 15,851,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,286.28 : 27,859,948.20 = 11,486,458.68 : x
  2. Step 2: Convert to fraction form
    20,188,286.28/27,859,948.20 = 11,486,458.68/x
  3. Step 3: Cross multiply
    20,188,286.28x = 27,859,948.20 × 11,486,458.68
  4. Step 4: Simplify right side
    20,188,286.28x = 320,012,143,826,240.38
  5. Step 5: Solve for x
    x = 320,012,143,826,240.38/20,188,286.28
  6. Step 6: Final answer
    x = 15,851,377.35

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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.