Home / 27,981,821.13-38,613,893.70-15,591,274.35

Finding the Fourth Proportional to 27,981,821.13, 38,613,893.70 and 15,591,274.35

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Solution

The fourth proportional to 27,981,821.13, 38,613,893.70 and 15,591,274.35 is: 21,515,390.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,981,821.13 : 38,613,893.70 = 15,591,274.35 : x
  2. Step 2: Convert to fraction form
    27,981,821.13/38,613,893.70 = 15,591,274.35/x
  3. Step 3: Cross multiply
    27,981,821.13x = 38,613,893.70 × 15,591,274.35
  4. Step 4: Simplify right side
    27,981,821.13x = 602,039,810,398,436.62
  5. Step 5: Solve for x
    x = 602,039,810,398,436.62/27,981,821.13
  6. Step 6: Final answer
    x = 21,515,390.57

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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.