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Finding the Third Proportional to 13,980,810 and 18,888,946

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Solution

The third proportional to 13,980,810 and 18,888,946 is: 25,520,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980,810 : 18,888,946 = 18,888,946 : x
  2. Step 2: Convert to fraction form
    13,980,810/18,888,946 = 18,888,946/x
  3. Step 3: Cross multiply
    13,980,810x = 18,888,946 × 18,888,946
  4. Step 4: Simplify right side
    13,980,810x = 356,792,280,990,916
  5. Step 5: Solve for x
    x = 356,792,280,990,916/13,980,810
  6. Step 6: Final answer
    x = 25,520,143.75

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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.