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Finding the Third Proportional to 7,721,408 and 16,639,600

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Solution

The third proportional to 7,721,408 and 16,639,600 is: 35,858,264.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721,408 : 16,639,600 = 16,639,600 : x
  2. Step 2: Convert to fraction form
    7,721,408/16,639,600 = 16,639,600/x
  3. Step 3: Cross multiply
    7,721,408x = 16,639,600 × 16,639,600
  4. Step 4: Simplify right side
    7,721,408x = 276,876,288,160,000
  5. Step 5: Solve for x
    x = 276,876,288,160,000/7,721,408
  6. Step 6: Final answer
    x = 35,858,264.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.