Home / 20,217,310.60-30,295,107.12-12,003,778.72

Finding the Fourth Proportional to 20,217,310.60, 30,295,107.12 and 12,003,778.72

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Solution

The fourth proportional to 20,217,310.60, 30,295,107.12 and 12,003,778.72 is: 17,987,346.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217,310.60 : 30,295,107.12 = 12,003,778.72 : x
  2. Step 2: Convert to fraction form
    20,217,310.60/30,295,107.12 = 12,003,778.72/x
  3. Step 3: Cross multiply
    20,217,310.60x = 30,295,107.12 × 12,003,778.72
  4. Step 4: Simplify right side
    20,217,310.60x = 363,655,762,167,176.50
  5. Step 5: Solve for x
    x = 363,655,762,167,176.50/20,217,310.60
  6. Step 6: Final answer
    x = 17,987,346.06

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1.5x scale

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.