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Finding the Third Proportional to 20,971,217 and 28,333,422

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Solution

The third proportional to 20,971,217 and 28,333,422 is: 38,280,220.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,971,217 : 28,333,422 = 28,333,422 : x
  2. Step 2: Convert to fraction form
    20,971,217/28,333,422 = 28,333,422/x
  3. Step 3: Cross multiply
    20,971,217x = 28,333,422 × 28,333,422
  4. Step 4: Simplify right side
    20,971,217x = 802,782,802,230,084
  5. Step 5: Solve for x
    x = 802,782,802,230,084/20,971,217
  6. Step 6: Final answer
    x = 38,280,220.09

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.