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Finding the Third Proportional to 20,868,351 and 28,836,108

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Solution

The third proportional to 20,868,351 and 28,836,108 is: 39,846,038.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868,351 : 28,836,108 = 28,836,108 : x
  2. Step 2: Convert to fraction form
    20,868,351/28,836,108 = 28,836,108/x
  3. Step 3: Cross multiply
    20,868,351x = 28,836,108 × 28,836,108
  4. Step 4: Simplify right side
    20,868,351x = 831,521,124,587,664
  5. Step 5: Solve for x
    x = 831,521,124,587,664/20,868,351
  6. Step 6: Final answer
    x = 39,846,038.85

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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.