Home / 3,121,204.80-4,680,640.80-2,171,755.20

Finding the Fourth Proportional to 3,121,204.80, 4,680,640.80 and 2,171,755.20

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Solution

The fourth proportional to 3,121,204.80, 4,680,640.80 and 2,171,755.20 is: 3,256,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,204.80 : 4,680,640.80 = 2,171,755.20 : x
  2. Step 2: Convert to fraction form
    3,121,204.80/4,680,640.80 = 2,171,755.20/x
  3. Step 3: Cross multiply
    3,121,204.80x = 4,680,640.80 × 2,171,755.20
  4. Step 4: Simplify right side
    3,121,204.80x = 10,165,205,996,732.16
  5. Step 5: Solve for x
    x = 10,165,205,996,732.16/3,121,204.80
  6. Step 6: Final answer
    x = 3,256,821.21

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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.