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Finding the Third Proportional to 18,007,943 and 39,431,170

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Solution

The third proportional to 18,007,943 and 39,431,170 is: 86,340,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007,943 : 39,431,170 = 39,431,170 : x
  2. Step 2: Convert to fraction form
    18,007,943/39,431,170 = 39,431,170/x
  3. Step 3: Cross multiply
    18,007,943x = 39,431,170 × 39,431,170
  4. Step 4: Simplify right side
    18,007,943x = 1,554,817,167,568,900
  5. Step 5: Solve for x
    x = 1,554,817,167,568,900/18,007,943
  6. Step 6: Final answer
    x = 86,340,631.33

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.