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Finding the Third Proportional to 18,178,636.36 and 38,876,696.72

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Solution

The third proportional to 18,178,636.36 and 38,876,696.72 is: 83,141,414.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178,636.36 : 38,876,696.72 = 38,876,696.72 : x
  2. Step 2: Convert to fraction form
    18,178,636.36/38,876,696.72 = 38,876,696.72/x
  3. Step 3: Cross multiply
    18,178,636.36x = 38,876,696.72 × 38,876,696.72
  4. Step 4: Simplify right side
    18,178,636.36x = 1,511,397,547,761,667
  5. Step 5: Solve for x
    x = 1,511,397,547,761,667/18,178,636.36
  6. Step 6: Final answer
    x = 83,141,414.89

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.