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Finding the Third Proportional to 11,940,021 and 18,009,904

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Solution

The third proportional to 11,940,021 and 18,009,904 is: 27,165,500.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940,021 : 18,009,904 = 18,009,904 : x
  2. Step 2: Convert to fraction form
    11,940,021/18,009,904 = 18,009,904/x
  3. Step 3: Cross multiply
    11,940,021x = 18,009,904 × 18,009,904
  4. Step 4: Simplify right side
    11,940,021x = 324,356,642,089,216
  5. Step 5: Solve for x
    x = 324,356,642,089,216/11,940,021
  6. Step 6: Final answer
    x = 27,165,500.14

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.