Home / 19,978,888.38-27,570,865.98-10,811,531.13

Finding the Fourth Proportional to 19,978,888.38, 27,570,865.98 and 10,811,531.13

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Solution

The fourth proportional to 19,978,888.38, 27,570,865.98 and 10,811,531.13 is: 14,919,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,978,888.38 : 27,570,865.98 = 10,811,531.13 : x
  2. Step 2: Convert to fraction form
    19,978,888.38/27,570,865.98 = 10,811,531.13/x
  3. Step 3: Cross multiply
    19,978,888.38x = 27,570,865.98 × 10,811,531.13
  4. Step 4: Simplify right side
    19,978,888.38x = 298,083,275,823,828
  5. Step 5: Solve for x
    x = 298,083,275,823,828/19,978,888.38
  6. Step 6: Final answer
    x = 14,919,912.97

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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.