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Finding the Third Proportional to 11,889,798 and 18,218,516

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Solution

The third proportional to 11,889,798 and 18,218,516 is: 27,915,892.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889,798 : 18,218,516 = 18,218,516 : x
  2. Step 2: Convert to fraction form
    11,889,798/18,218,516 = 18,218,516/x
  3. Step 3: Cross multiply
    11,889,798x = 18,218,516 × 18,218,516
  4. Step 4: Simplify right side
    11,889,798x = 331,914,325,242,256
  5. Step 5: Solve for x
    x = 331,914,325,242,256/11,889,798
  6. Step 6: Final answer
    x = 27,915,892.70

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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.