Home / 12,485,717.20-18,729,823.20-3,387,959.20

Finding the Fourth Proportional to 12,485,717.20, 18,729,823.20 and 3,387,959.20

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Solution

The fourth proportional to 12,485,717.20, 18,729,823.20 and 3,387,959.20 is: 5,082,277.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,717.20 : 18,729,823.20 = 3,387,959.20 : x
  2. Step 2: Convert to fraction form
    12,485,717.20/18,729,823.20 = 3,387,959.20/x
  3. Step 3: Cross multiply
    12,485,717.20x = 18,729,823.20 × 3,387,959.20
  4. Step 4: Simplify right side
    12,485,717.20x = 63,455,876,824,813.44
  5. Step 5: Solve for x
    x = 63,455,876,824,813.44/12,485,717.20
  6. Step 6: Final answer
    x = 5,082,277.28

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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.