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Finding the Third Proportional to 28,420,992 and 43,989,624

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Solution

The third proportional to 28,420,992 and 43,989,624 is: 68,086,540.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,992 : 43,989,624 = 43,989,624 : x
  2. Step 2: Convert to fraction form
    28,420,992/43,989,624 = 43,989,624/x
  3. Step 3: Cross multiply
    28,420,992x = 43,989,624 × 43,989,624
  4. Step 4: Simplify right side
    28,420,992x = 1,935,087,019,661,376
  5. Step 5: Solve for x
    x = 1,935,087,019,661,376/28,420,992
  6. Step 6: Final answer
    x = 68,086,540.39

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.