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Finding the Third Proportional to 21,700,728 and 29,552,688

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Solution

The third proportional to 21,700,728 and 29,552,688 is: 40,245,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700,728 : 29,552,688 = 29,552,688 : x
  2. Step 2: Convert to fraction form
    21,700,728/29,552,688 = 29,552,688/x
  3. Step 3: Cross multiply
    21,700,728x = 29,552,688 × 29,552,688
  4. Step 4: Simplify right side
    21,700,728x = 873,361,368,025,344
  5. Step 5: Solve for x
    x = 873,361,368,025,344/21,700,728
  6. Step 6: Final answer
    x = 40,245,717.47

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.