Home / 3,427,139.20-4,729,640.36-1,899,213.52

Finding the Fourth Proportional to 3,427,139.20, 4,729,640.36 and 1,899,213.52

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Solution

The fourth proportional to 3,427,139.20, 4,729,640.36 and 1,899,213.52 is: 2,621,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427,139.20 : 4,729,640.36 = 1,899,213.52 : x
  2. Step 2: Convert to fraction form
    3,427,139.20/4,729,640.36 = 1,899,213.52/x
  3. Step 3: Cross multiply
    3,427,139.20x = 4,729,640.36 × 1,899,213.52
  4. Step 4: Simplify right side
    3,427,139.20x = 8,982,596,916,449.67
  5. Step 5: Solve for x
    x = 8,982,596,916,449.67/3,427,139.20
  6. Step 6: Final answer
    x = 2,621,018.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.