Home / 18,685,772.20-28,028,658.30-17,174,117.80

Finding the Fourth Proportional to 18,685,772.20, 28,028,658.30 and 17,174,117.80

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Solution

The fourth proportional to 18,685,772.20, 28,028,658.30 and 17,174,117.80 is: 25,761,176.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685,772.20 : 28,028,658.30 = 17,174,117.80 : x
  2. Step 2: Convert to fraction form
    18,685,772.20/28,028,658.30 = 17,174,117.80/x
  3. Step 3: Cross multiply
    18,685,772.20x = 28,028,658.30 × 17,174,117.80
  4. Step 4: Simplify right side
    18,685,772.20x = 481,367,479,420,147.75
  5. Step 5: Solve for x
    x = 481,367,479,420,147.75/18,685,772.20
  6. Step 6: Final answer
    x = 25,761,176.70

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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.