Home / 15,181,719.20-20,951,295.72-8,306,201.60

Finding the Fourth Proportional to 15,181,719.20, 20,951,295.72 and 8,306,201.60

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Solution

The fourth proportional to 15,181,719.20, 20,951,295.72 and 8,306,201.60 is: 11,462,844.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181,719.20 : 20,951,295.72 = 8,306,201.60 : x
  2. Step 2: Convert to fraction form
    15,181,719.20/20,951,295.72 = 8,306,201.60/x
  3. Step 3: Cross multiply
    15,181,719.20x = 20,951,295.72 × 8,306,201.60
  4. Step 4: Simplify right side
    15,181,719.20x = 174,025,686,031,537.12
  5. Step 5: Solve for x
    x = 174,025,686,031,537.12/15,181,719.20
  6. Step 6: Final answer
    x = 11,462,844.47

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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.