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Finding the Third Proportional to 21,686,667 and 45,609,805

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Solution

The third proportional to 21,686,667 and 45,609,805 is: 95,923,191.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,686,667 : 45,609,805 = 45,609,805 : x
  2. Step 2: Convert to fraction form
    21,686,667/45,609,805 = 45,609,805/x
  3. Step 3: Cross multiply
    21,686,667x = 45,609,805 × 45,609,805
  4. Step 4: Simplify right side
    21,686,667x = 2,080,254,312,138,025
  5. Step 5: Solve for x
    x = 2,080,254,312,138,025/21,686,667
  6. Step 6: Final answer
    x = 95,923,191.52

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.