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Finding the Third Proportional to 13,980,812 and 18,888,947

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Solution

The third proportional to 13,980,812 and 18,888,947 is: 25,520,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980,812 : 18,888,947 = 18,888,947 : x
  2. Step 2: Convert to fraction form
    13,980,812/18,888,947 = 18,888,947/x
  3. Step 3: Cross multiply
    13,980,812x = 18,888,947 × 18,888,947
  4. Step 4: Simplify right side
    13,980,812x = 356,792,318,768,809
  5. Step 5: Solve for x
    x = 356,792,318,768,809/13,980,812
  6. Step 6: Final answer
    x = 25,520,142.80

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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.