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Finding the Fourth Proportional to 18,442,920.20, 27,664,380.30 and 17,911,479.20

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Solution

The fourth proportional to 18,442,920.20, 27,664,380.30 and 17,911,479.20 is: 26,867,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442,920.20 : 27,664,380.30 = 17,911,479.20 : x
  2. Step 2: Convert to fraction form
    18,442,920.20/27,664,380.30 = 17,911,479.20/x
  3. Step 3: Cross multiply
    18,442,920.20x = 27,664,380.30 × 17,911,479.20
  4. Step 4: Simplify right side
    18,442,920.20x = 495,509,972,324,339.75
  5. Step 5: Solve for x
    x = 495,509,972,324,339.75/18,442,920.20
  6. Step 6: Final answer
    x = 26,867,218.80

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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.