Home / 3,321,390.20-4,982,085.30-2,187,649.40

Finding the Fourth Proportional to 3,321,390.20, 4,982,085.30 and 2,187,649.40

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Solution

The fourth proportional to 3,321,390.20, 4,982,085.30 and 2,187,649.40 is: 3,281,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321,390.20 : 4,982,085.30 = 2,187,649.40 : x
  2. Step 2: Convert to fraction form
    3,321,390.20/4,982,085.30 = 2,187,649.40/x
  3. Step 3: Cross multiply
    3,321,390.20x = 4,982,085.30 × 2,187,649.40
  4. Step 4: Simplify right side
    3,321,390.20x = 10,899,055,917,293.82
  5. Step 5: Solve for x
    x = 10,899,055,917,293.82/3,321,390.20
  6. Step 6: Final answer
    x = 3,281,474.10

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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.