Home / 20,704,767.20-31,056,859.20-9,345,197.60

Finding the Fourth Proportional to 20,704,767.20, 31,056,859.20 and 9,345,197.60

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Solution

The fourth proportional to 20,704,767.20, 31,056,859.20 and 9,345,197.60 is: 14,017,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,767.20 : 31,056,859.20 = 9,345,197.60 : x
  2. Step 2: Convert to fraction form
    20,704,767.20/31,056,859.20 = 9,345,197.60/x
  3. Step 3: Cross multiply
    20,704,767.20x = 31,056,859.20 × 9,345,197.60
  4. Step 4: Simplify right side
    20,704,767.20x = 290,232,486,059,377.88
  5. Step 5: Solve for x
    x = 290,232,486,059,377.88/20,704,767.20
  6. Step 6: Final answer
    x = 14,017,664.78

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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.