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Finding the Third Proportional to 5,215,474.88 and 10,578,339

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Solution

The third proportional to 5,215,474.88 and 10,578,339 is: 21,455,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,474.88 : 10,578,339 = 10,578,339 : x
  2. Step 2: Convert to fraction form
    5,215,474.88/10,578,339 = 10,578,339/x
  3. Step 3: Cross multiply
    5,215,474.88x = 10,578,339 × 10,578,339
  4. Step 4: Simplify right side
    5,215,474.88x = 111,901,255,998,921
  5. Step 5: Solve for x
    x = 111,901,255,998,921/5,215,474.88
  6. Step 6: Final answer
    x = 21,455,621.72

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.