Home / 12,820,521.36-19,231,777.92-3,722,769.12

Finding the Fourth Proportional to 12,820,521.36, 19,231,777.92 and 3,722,769.12

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Solution

The fourth proportional to 12,820,521.36, 19,231,777.92 and 3,722,769.12 is: 5,584,442.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,820,521.36 : 19,231,777.92 = 3,722,769.12 : x
  2. Step 2: Convert to fraction form
    12,820,521.36/19,231,777.92 = 3,722,769.12/x
  3. Step 3: Cross multiply
    12,820,521.36x = 19,231,777.92 × 3,722,769.12
  4. Step 4: Simplify right side
    12,820,521.36x = 71,595,468,963,273.84
  5. Step 5: Solve for x
    x = 71,595,468,963,273.84/12,820,521.36
  6. Step 6: Final answer
    x = 5,584,442.86

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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.