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Finding the Third Proportional to 21,678,481 and 31,159,586

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Solution

The third proportional to 21,678,481 and 31,159,586 is: 44,787,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,678,481 : 31,159,586 = 31,159,586 : x
  2. Step 2: Convert to fraction form
    21,678,481/31,159,586 = 31,159,586/x
  3. Step 3: Cross multiply
    21,678,481x = 31,159,586 × 31,159,586
  4. Step 4: Simplify right side
    21,678,481x = 970,919,799,691,396
  5. Step 5: Solve for x
    x = 970,919,799,691,396/21,678,481
  6. Step 6: Final answer
    x = 44,787,261.60

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.