Home / 13,321,328.54-18,383,433.05-7,209,757.04

Finding the Fourth Proportional to 13,321,328.54, 18,383,433.05 and 7,209,757.04

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Solution

The fourth proportional to 13,321,328.54, 18,383,433.05 and 7,209,757.04 is: 9,949,464.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,328.54 : 18,383,433.05 = 7,209,757.04 : x
  2. Step 2: Convert to fraction form
    13,321,328.54/18,383,433.05 = 7,209,757.04/x
  3. Step 3: Cross multiply
    13,321,328.54x = 18,383,433.05 × 7,209,757.04
  4. Step 4: Simplify right side
    13,321,328.54x = 132,540,085,815,557.41
  5. Step 5: Solve for x
    x = 132,540,085,815,557.41/13,321,328.54
  6. Step 6: Final answer
    x = 9,949,464.53

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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.