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Finding the Third Proportional to 5,390,661.09 and 11,690,863.69

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Solution

The third proportional to 5,390,661.09 and 11,690,863.69 is: 25,354,273.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,661.09 : 11,690,863.69 = 11,690,863.69 : x
  2. Step 2: Convert to fraction form
    5,390,661.09/11,690,863.69 = 11,690,863.69/x
  3. Step 3: Cross multiply
    5,390,661.09x = 11,690,863.69 × 11,690,863.69
  4. Step 4: Simplify right side
    5,390,661.09x = 136,676,293,759,706.09
  5. Step 5: Solve for x
    x = 136,676,293,759,706.09/5,390,661.09
  6. Step 6: Final answer
    x = 25,354,273.14

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.