Home / 3,179,044.20-4,387,196.36-1,821,179.64

Finding the Fourth Proportional to 3,179,044.20, 4,387,196.36 and 1,821,179.64

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Solution

The fourth proportional to 3,179,044.20, 4,387,196.36 and 1,821,179.64 is: 2,513,293.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,044.20 : 4,387,196.36 = 1,821,179.64 : x
  2. Step 2: Convert to fraction form
    3,179,044.20/4,387,196.36 = 1,821,179.64/x
  3. Step 3: Cross multiply
    3,179,044.20x = 4,387,196.36 × 1,821,179.64
  4. Step 4: Simplify right side
    3,179,044.20x = 7,989,872,687,514.11
  5. Step 5: Solve for x
    x = 7,989,872,687,514.11/3,179,044.20
  6. Step 6: Final answer
    x = 2,513,293.99

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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.