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Finding the Third Proportional to 9,274,402 and 19,781,372

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Solution

The third proportional to 9,274,402 and 19,781,372 is: 42,191,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,274,402 : 19,781,372 = 19,781,372 : x
  2. Step 2: Convert to fraction form
    9,274,402/19,781,372 = 19,781,372/x
  3. Step 3: Cross multiply
    9,274,402x = 19,781,372 × 19,781,372
  4. Step 4: Simplify right side
    9,274,402x = 391,302,678,202,384
  5. Step 5: Solve for x
    x = 391,302,678,202,384/9,274,402
  6. Step 6: Final answer
    x = 42,191,688.28

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.