Home / 18,686,098.20-28,029,147.30-17,174,443.80

Finding the Fourth Proportional to 18,686,098.20, 28,029,147.30 and 17,174,443.80

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Solution

The fourth proportional to 18,686,098.20, 28,029,147.30 and 17,174,443.80 is: 25,761,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,098.20 : 28,029,147.30 = 17,174,443.80 : x
  2. Step 2: Convert to fraction form
    18,686,098.20/28,029,147.30 = 17,174,443.80/x
  3. Step 3: Cross multiply
    18,686,098.20x = 28,029,147.30 × 17,174,443.80
  4. Step 4: Simplify right side
    18,686,098.20x = 481,385,015,065,771.75
  5. Step 5: Solve for x
    x = 481,385,015,065,771.75/18,686,098.20
  6. Step 6: Final answer
    x = 25,761,665.70

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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.