Home / 7,948,512.80-11,930,679.60-3,689,645.60

Finding the Fourth Proportional to 7,948,512.80, 11,930,679.60 and 3,689,645.60

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Solution

The fourth proportional to 7,948,512.80, 11,930,679.60 and 3,689,645.60 is: 5,538,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948,512.80 : 11,930,679.60 = 3,689,645.60 : x
  2. Step 2: Convert to fraction form
    7,948,512.80/11,930,679.60 = 3,689,645.60/x
  3. Step 3: Cross multiply
    7,948,512.80x = 11,930,679.60 × 3,689,645.60
  4. Step 4: Simplify right side
    7,948,512.80x = 44,019,979,491,149.76
  5. Step 5: Solve for x
    x = 44,019,979,491,149.76/7,948,512.80
  6. Step 6: Final answer
    x = 5,538,140.35

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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.