Home / 12,485,345.20-18,729,265.20-3,387,587.20

Finding the Fourth Proportional to 12,485,345.20, 18,729,265.20 and 3,387,587.20

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Solution

The fourth proportional to 12,485,345.20, 18,729,265.20 and 3,387,587.20 is: 5,081,719.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,345.20 : 18,729,265.20 = 3,387,587.20 : x
  2. Step 2: Convert to fraction form
    12,485,345.20/18,729,265.20 = 3,387,587.20/x
  3. Step 3: Cross multiply
    12,485,345.20x = 18,729,265.20 × 3,387,587.20
  4. Step 4: Simplify right side
    12,485,345.20x = 63,447,019,056,925.44
  5. Step 5: Solve for x
    x = 63,447,019,056,925.44/12,485,345.20
  6. Step 6: Final answer
    x = 5,081,719.25

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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.