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Finding the Third Proportional to 21,000,975 and 31,502,025

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Solution

The third proportional to 21,000,975 and 31,502,025 is: 47,253,881.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,000,975 : 31,502,025 = 31,502,025 : x
  2. Step 2: Convert to fraction form
    21,000,975/31,502,025 = 31,502,025/x
  3. Step 3: Cross multiply
    21,000,975x = 31,502,025 × 31,502,025
  4. Step 4: Simplify right side
    21,000,975x = 992,377,579,100,625
  5. Step 5: Solve for x
    x = 992,377,579,100,625/21,000,975
  6. Step 6: Final answer
    x = 47,253,881.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.