Home / 12,948,808.92-17,869,353.61-7,147,589.15

Finding the Fourth Proportional to 12,948,808.92, 17,869,353.61 and 7,147,589.15

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Solution

The fourth proportional to 12,948,808.92, 17,869,353.61 and 7,147,589.15 is: 9,863,671.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,808.92 : 17,869,353.61 = 7,147,589.15 : x
  2. Step 2: Convert to fraction form
    12,948,808.92/17,869,353.61 = 7,147,589.15/x
  3. Step 3: Cross multiply
    12,948,808.92x = 17,869,353.61 × 7,147,589.15
  4. Step 4: Simplify right side
    12,948,808.92x = 127,722,797,980,349.33
  5. Step 5: Solve for x
    x = 127,722,797,980,349.33/12,948,808.92
  6. Step 6: Final answer
    x = 9,863,671.54

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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.