Home / 3,643,171.20-5,027,600.56-1,989,329.79

Finding the Fourth Proportional to 3,643,171.20, 5,027,600.56 and 1,989,329.79

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Solution

The fourth proportional to 3,643,171.20, 5,027,600.56 and 1,989,329.79 is: 2,745,288.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643,171.20 : 5,027,600.56 = 1,989,329.79 : x
  2. Step 2: Convert to fraction form
    3,643,171.20/5,027,600.56 = 1,989,329.79/x
  3. Step 3: Cross multiply
    3,643,171.20x = 5,027,600.56 × 1,989,329.79
  4. Step 4: Simplify right side
    3,643,171.20x = 10,001,555,576,378.87
  5. Step 5: Solve for x
    x = 10,001,555,576,378.87/3,643,171.20
  6. Step 6: Final answer
    x = 2,745,288.39

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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.