Home / 20,704,659.40-31,056,989.10-5,560,121.80

Finding the Fourth Proportional to 20,704,659.40, 31,056,989.10 and 5,560,121.80

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Solution

The fourth proportional to 20,704,659.40, 31,056,989.10 and 5,560,121.80 is: 8,340,182.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704,659.40 : 31,056,989.10 = 5,560,121.80 : x
  2. Step 2: Convert to fraction form
    20,704,659.40/31,056,989.10 = 5,560,121.80/x
  3. Step 3: Cross multiply
    20,704,659.40x = 31,056,989.10 × 5,560,121.80
  4. Step 4: Simplify right side
    20,704,659.40x = 172,680,642,137,272.38
  5. Step 5: Solve for x
    x = 172,680,642,137,272.38/20,704,659.40
  6. Step 6: Final answer
    x = 8,340,182.70

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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.