Home / 13,540,620.60-20,299,121.10-8,151,415.20

Finding the Fourth Proportional to 13,540,620.60, 20,299,121.10 and 8,151,415.20

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Solution

The fourth proportional to 13,540,620.60, 20,299,121.10 and 8,151,415.20 is: 12,220,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540,620.60 : 20,299,121.10 = 8,151,415.20 : x
  2. Step 2: Convert to fraction form
    13,540,620.60/20,299,121.10 = 8,151,415.20/x
  3. Step 3: Cross multiply
    13,540,620.60x = 20,299,121.10 × 8,151,415.20
  4. Step 4: Simplify right side
    13,540,620.60x = 165,466,564,281,180.75
  5. Step 5: Solve for x
    x = 165,466,564,281,180.75/13,540,620.60
  6. Step 6: Final answer
    x = 12,220,013.33

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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.