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Finding the Third Proportional to 12,211,614 and 18,989,640

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Solution

The third proportional to 12,211,614 and 18,989,640 is: 29,529,792.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,211,614 : 18,989,640 = 18,989,640 : x
  2. Step 2: Convert to fraction form
    12,211,614/18,989,640 = 18,989,640/x
  3. Step 3: Cross multiply
    12,211,614x = 18,989,640 × 18,989,640
  4. Step 4: Simplify right side
    12,211,614x = 360,606,427,329,600
  5. Step 5: Solve for x
    x = 360,606,427,329,600/12,211,614
  6. Step 6: Final answer
    x = 29,529,792.49

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.