Home / 13,321,456.32-18,383,763.05-7,814,924.85

Finding the Fourth Proportional to 13,321,456.32, 18,383,763.05 and 7,814,924.85

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Solution

The fourth proportional to 13,321,456.32, 18,383,763.05 and 7,814,924.85 is: 10,784,686.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,456.32 : 18,383,763.05 = 7,814,924.85 : x
  2. Step 2: Convert to fraction form
    13,321,456.32/18,383,763.05 = 7,814,924.85/x
  3. Step 3: Cross multiply
    13,321,456.32x = 18,383,763.05 × 7,814,924.85
  4. Step 4: Simplify right side
    13,321,456.32x = 143,667,726,656,882.19
  5. Step 5: Solve for x
    x = 143,667,726,656,882.19/13,321,456.32
  6. Step 6: Final answer
    x = 10,784,686.24

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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.