Home / 13,988,540.40-20,982,810.60-8,305,839.60

Finding the Fourth Proportional to 13,988,540.40, 20,982,810.60 and 8,305,839.60

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Solution

The fourth proportional to 13,988,540.40, 20,982,810.60 and 8,305,839.60 is: 12,458,759.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988,540.40 : 20,982,810.60 = 8,305,839.60 : x
  2. Step 2: Convert to fraction form
    13,988,540.40/20,982,810.60 = 8,305,839.60/x
  3. Step 3: Cross multiply
    13,988,540.40x = 20,982,810.60 × 8,305,839.60
  4. Step 4: Simplify right side
    13,988,540.40x = 174,279,859,200,779.75
  5. Step 5: Solve for x
    x = 174,279,859,200,779.75/13,988,540.40
  6. Step 6: Final answer
    x = 12,458,759.40

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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.