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Finding the Third Proportional to 18,915,603,722 and 41,686,809,911

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Solution

The third proportional to 18,915,603,722 and 41,686,809,911 is: 91,870,719,332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915,603,722 : 41,686,809,911 = 41,686,809,911 : x
  2. Step 2: Convert to fraction form
    18,915,603,722/41,686,809,911 = 41,686,809,911/x
  3. Step 3: Cross multiply
    18,915,603,722x = 41,686,809,911 × 41,686,809,911
  4. Step 4: Simplify right side
    18,915,603,722x = 1,737,790,120,555,847,876,608
  5. Step 5: Solve for x
    x = 1,737,790,120,555,847,876,608/18,915,603,722
  6. Step 6: Final answer
    x = 91,870,719,332.88

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.