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Finding the Third Proportional to 18,178,866 and 38,877,138

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Solution

The third proportional to 18,178,866 and 38,877,138 is: 83,142,252.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178,866 : 38,877,138 = 38,877,138 : x
  2. Step 2: Convert to fraction form
    18,178,866/38,877,138 = 38,877,138/x
  3. Step 3: Cross multiply
    18,178,866x = 38,877,138 × 38,877,138
  4. Step 4: Simplify right side
    18,178,866x = 1,511,431,859,071,044
  5. Step 5: Solve for x
    x = 1,511,431,859,071,044/18,178,866
  6. Step 6: Final answer
    x = 83,142,252.06

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.