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Finding the Third Proportional to 18,665,946 and 38,626,612

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Solution

The third proportional to 18,665,946 and 38,626,612 is: 79,932,469.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665,946 : 38,626,612 = 38,626,612 : x
  2. Step 2: Convert to fraction form
    18,665,946/38,626,612 = 38,626,612/x
  3. Step 3: Cross multiply
    18,665,946x = 38,626,612 × 38,626,612
  4. Step 4: Simplify right side
    18,665,946x = 1,492,015,154,598,544
  5. Step 5: Solve for x
    x = 1,492,015,154,598,544/18,665,946
  6. Step 6: Final answer
    x = 79,932,469.25

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.