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Finding the Third Proportional to 18,007,942 and 39,431,168

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Solution

The third proportional to 18,007,942 and 39,431,168 is: 86,340,627.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007,942 : 39,431,168 = 39,431,168 : x
  2. Step 2: Convert to fraction form
    18,007,942/39,431,168 = 39,431,168/x
  3. Step 3: Cross multiply
    18,007,942x = 39,431,168 × 39,431,168
  4. Step 4: Simplify right side
    18,007,942x = 1,554,817,009,844,224
  5. Step 5: Solve for x
    x = 1,554,817,009,844,224/18,007,942
  6. Step 6: Final answer
    x = 86,340,627.37

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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.