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Finding the Third Proportional to 21,674,472 and 29,721,628

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Solution

The third proportional to 21,674,472 and 29,721,628 is: 40,756,479.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,674,472 : 29,721,628 = 29,721,628 : x
  2. Step 2: Convert to fraction form
    21,674,472/29,721,628 = 29,721,628/x
  3. Step 3: Cross multiply
    21,674,472x = 29,721,628 × 29,721,628
  4. Step 4: Simplify right side
    21,674,472x = 883,375,170,970,384
  5. Step 5: Solve for x
    x = 883,375,170,970,384/21,674,472
  6. Step 6: Final answer
    x = 40,756,479.37

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.