Home / 13,500,620.60-20,219,438.10-13,230,015.80

Finding the Fourth Proportional to 13,500,620.60, 20,219,438.10 and 13,230,015.80

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Solution

The fourth proportional to 13,500,620.60, 20,219,438.10 and 13,230,015.80 is: 19,814,162.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,500,620.60 : 20,219,438.10 = 13,230,015.80 : x
  2. Step 2: Convert to fraction form
    13,500,620.60/20,219,438.10 = 13,230,015.80/x
  3. Step 3: Cross multiply
    13,500,620.60x = 20,219,438.10 × 13,230,015.80
  4. Step 4: Simplify right side
    13,500,620.60x = 267,503,485,530,122
  5. Step 5: Solve for x
    x = 267,503,485,530,122/13,500,620.60
  6. Step 6: Final answer
    x = 19,814,162.14

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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.