Home / 3,987,121.20-5,502,178.17-2,268,238.02

Finding the Fourth Proportional to 3,987,121.20, 5,502,178.17 and 2,268,238.02

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Solution

The fourth proportional to 3,987,121.20, 5,502,178.17 and 2,268,238.02 is: 3,130,140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987,121.20 : 5,502,178.17 = 2,268,238.02 : x
  2. Step 2: Convert to fraction form
    3,987,121.20/5,502,178.17 = 2,268,238.02/x
  3. Step 3: Cross multiply
    3,987,121.20x = 5,502,178.17 × 2,268,238.02
  4. Step 4: Simplify right side
    3,987,121.20x = 12,480,249,718,008.02
  5. Step 5: Solve for x
    x = 12,480,249,718,008.02/3,987,121.20
  6. Step 6: Final answer
    x = 3,130,140.54

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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.