Home / 12,375,644.73-18,570,110.10-5,187,905.20

Finding the Fourth Proportional to 12,375,644.73, 18,570,110.10 and 5,187,905.20

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Solution

The fourth proportional to 12,375,644.73, 18,570,110.10 and 5,187,905.20 is: 7,784,642.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375,644.73 : 18,570,110.10 = 5,187,905.20 : x
  2. Step 2: Convert to fraction form
    12,375,644.73/18,570,110.10 = 5,187,905.20/x
  3. Step 3: Cross multiply
    12,375,644.73x = 18,570,110.10 × 5,187,905.20
  4. Step 4: Simplify right side
    12,375,644.73x = 96,339,970,752,362.53
  5. Step 5: Solve for x
    x = 96,339,970,752,362.53/12,375,644.73
  6. Step 6: Final answer
    x = 7,784,642.57

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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.