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Finding the Third Proportional to 4,991,242.50 and 10,218,910

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Solution

The third proportional to 4,991,242.50 and 10,218,910 is: 20,921,868.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991,242.50 : 10,218,910 = 10,218,910 : x
  2. Step 2: Convert to fraction form
    4,991,242.50/10,218,910 = 10,218,910/x
  3. Step 3: Cross multiply
    4,991,242.50x = 10,218,910 × 10,218,910
  4. Step 4: Simplify right side
    4,991,242.50x = 104,426,121,588,100
  5. Step 5: Solve for x
    x = 104,426,121,588,100/4,991,242.50
  6. Step 6: Final answer
    x = 20,921,868.97

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.