Home / 27,981,828.12-38,613,903.36-15,591,281.36

Finding the Fourth Proportional to 27,981,828.12, 38,613,903.36 and 15,591,281.36

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Solution

The fourth proportional to 27,981,828.12, 38,613,903.36 and 15,591,281.36 is: 21,515,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981,828.12 : 38,613,903.36 = 15,591,281.36 : x
  2. Step 2: Convert to fraction form
    27,981,828.12/38,613,903.36 = 15,591,281.36/x
  3. Step 3: Cross multiply
    27,981,828.12x = 38,613,903.36 × 15,591,281.36
  4. Step 4: Simplify right side
    27,981,828.12x = 602,040,231,693,609.38
  5. Step 5: Solve for x
    x = 602,040,231,693,609.38/27,981,828.12
  6. Step 6: Final answer
    x = 21,515,400.25

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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.