Home / 27,147,462.31-40,721,201.57-7,978,219.39

Finding the Fourth Proportional to 27,147,462.31, 40,721,201.57 and 7,978,219.39

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Solution

The fourth proportional to 27,147,462.31, 40,721,201.57 and 7,978,219.39 is: 11,967,331.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,147,462.31 : 40,721,201.57 = 7,978,219.39 : x
  2. Step 2: Convert to fraction form
    27,147,462.31/40,721,201.57 = 7,978,219.39/x
  3. Step 3: Cross multiply
    27,147,462.31x = 40,721,201.57 × 7,978,219.39
  4. Step 4: Simplify right side
    27,147,462.31x = 324,882,679,949,872.44
  5. Step 5: Solve for x
    x = 324,882,679,949,872.44/27,147,462.31
  6. Step 6: Final answer
    x = 11,967,331.47

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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.