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Finding the Third Proportional to 18,231,966 and 39,851,838

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Solution

The third proportional to 18,231,966 and 39,851,838 is: 87,109,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231,966 : 39,851,838 = 39,851,838 : x
  2. Step 2: Convert to fraction form
    18,231,966/39,851,838 = 39,851,838/x
  3. Step 3: Cross multiply
    18,231,966x = 39,851,838 × 39,851,838
  4. Step 4: Simplify right side
    18,231,966x = 1,588,168,991,978,244
  5. Step 5: Solve for x
    x = 1,588,168,991,978,244/18,231,966
  6. Step 6: Final answer
    x = 87,109,036.51

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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.