Home / 3,451,640.40-5,171,555.70-2,187,991.80

Finding the Fourth Proportional to 3,451,640.40, 5,171,555.70 and 2,187,991.80

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Solution

The fourth proportional to 3,451,640.40, 5,171,555.70 and 2,187,991.80 is: 3,278,244.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451,640.40 : 5,171,555.70 = 2,187,991.80 : x
  2. Step 2: Convert to fraction form
    3,451,640.40/5,171,555.70 = 2,187,991.80/x
  3. Step 3: Cross multiply
    3,451,640.40x = 5,171,555.70 × 2,187,991.80
  4. Step 4: Simplify right side
    3,451,640.40x = 11,315,321,464,843.26
  5. Step 5: Solve for x
    x = 11,315,321,464,843.26/3,451,640.40
  6. Step 6: Final answer
    x = 3,278,244.59

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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.