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Finding the Third Proportional to 21,673,800 and 29,720,880

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Solution

The third proportional to 21,673,800 and 29,720,880 is: 40,755,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673,800 : 29,720,880 = 29,720,880 : x
  2. Step 2: Convert to fraction form
    21,673,800/29,720,880 = 29,720,880/x
  3. Step 3: Cross multiply
    21,673,800x = 29,720,880 × 29,720,880
  4. Step 4: Simplify right side
    21,673,800x = 883,330,707,974,400
  5. Step 5: Solve for x
    x = 883,330,707,974,400/21,673,800
  6. Step 6: Final answer
    x = 40,755,691.57

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.