Home / 27,981,820.38-38,613,892.67-15,591,273.60

Finding the Fourth Proportional to 27,981,820.38, 38,613,892.67 and 15,591,273.60

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Solution

The fourth proportional to 27,981,820.38, 38,613,892.67 and 15,591,273.60 is: 21,515,389.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981,820.38 : 38,613,892.67 = 15,591,273.60 : x
  2. Step 2: Convert to fraction form
    27,981,820.38/38,613,892.67 = 15,591,273.60/x
  3. Step 3: Cross multiply
    27,981,820.38x = 38,613,892.67 × 15,591,273.60
  4. Step 4: Simplify right side
    27,981,820.38x = 602,039,765,301,048.12
  5. Step 5: Solve for x
    x = 602,039,765,301,048.12/27,981,820.38
  6. Step 6: Final answer
    x = 21,515,389.53

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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.