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Finding the Third Proportional to 11,890,088 and 18,218,916

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Solution

The third proportional to 11,890,088 and 18,218,916 is: 27,916,437.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890,088 : 18,218,916 = 18,218,916 : x
  2. Step 2: Convert to fraction form
    11,890,088/18,218,916 = 18,218,916/x
  3. Step 3: Cross multiply
    11,890,088x = 18,218,916 × 18,218,916
  4. Step 4: Simplify right side
    11,890,088x = 331,928,900,215,056
  5. Step 5: Solve for x
    x = 331,928,900,215,056/11,890,088
  6. Step 6: Final answer
    x = 27,916,437.64

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.