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Finding the Third Proportional to 4,545,238 and 9,720,872

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Solution

The third proportional to 4,545,238 and 9,720,872 is: 20,789,967.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,545,238 : 9,720,872 = 9,720,872 : x
  2. Step 2: Convert to fraction form
    4,545,238/9,720,872 = 9,720,872/x
  3. Step 3: Cross multiply
    4,545,238x = 9,720,872 × 9,720,872
  4. Step 4: Simplify right side
    4,545,238x = 94,495,352,440,384
  5. Step 5: Solve for x
    x = 94,495,352,440,384/4,545,238
  6. Step 6: Final answer
    x = 20,789,967.97

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.