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Finding the Third Proportional to 4,991,168 and 10,218,772

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Solution

The third proportional to 4,991,168 and 10,218,772 is: 20,921,616.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991,168 : 10,218,772 = 10,218,772 : x
  2. Step 2: Convert to fraction form
    4,991,168/10,218,772 = 10,218,772/x
  3. Step 3: Cross multiply
    4,991,168x = 10,218,772 × 10,218,772
  4. Step 4: Simplify right side
    4,991,168x = 104,423,301,187,984
  5. Step 5: Solve for x
    x = 104,423,301,187,984/4,991,168
  6. Step 6: Final answer
    x = 20,921,616.18

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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.