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Finding the Third Proportional to 128,906,808 and 204,454,191

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Solution

The third proportional to 128,906,808 and 204,454,191 is: 324,277,025.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,906,808 : 204,454,191 = 204,454,191 : x
  2. Step 2: Convert to fraction form
    128,906,808/204,454,191 = 204,454,191/x
  3. Step 3: Cross multiply
    128,906,808x = 204,454,191 × 204,454,191
  4. Step 4: Simplify right side
    128,906,808x = 41,801,516,217,464,480
  5. Step 5: Solve for x
    x = 41,801,516,217,464,480/128,906,808
  6. Step 6: Final answer
    x = 324,277,025.13

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.