Home / 10,970,719.72-15,125,525.20-8,519,171.56

Finding the Fourth Proportional to 10,970,719.72, 15,125,525.20 and 8,519,171.56

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Solution

The fourth proportional to 10,970,719.72, 15,125,525.20 and 8,519,171.56 is: 11,745,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970,719.72 : 15,125,525.20 = 8,519,171.56 : x
  2. Step 2: Convert to fraction form
    10,970,719.72/15,125,525.20 = 8,519,171.56/x
  3. Step 3: Cross multiply
    10,970,719.72x = 15,125,525.20 × 8,519,171.56
  4. Step 4: Simplify right side
    10,970,719.72x = 128,856,944,113,903.31
  5. Step 5: Solve for x
    x = 128,856,944,113,903.31/10,970,719.72
  6. Step 6: Final answer
    x = 11,745,532.42

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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.