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Finding the Third Proportional to 4,220,433,936 and 8,986,716,828

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Solution

The third proportional to 4,220,433,936 and 8,986,716,828 is: 19,135,728,830.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220,433,936 : 8,986,716,828 = 8,986,716,828 : x
  2. Step 2: Convert to fraction form
    4,220,433,936/8,986,716,828 = 8,986,716,828/x
  3. Step 3: Cross multiply
    4,220,433,936x = 8,986,716,828 × 8,986,716,828
  4. Step 4: Simplify right side
    4,220,433,936x = 80,761,079,346,658,377,728
  5. Step 5: Solve for x
    x = 80,761,079,346,658,377,728/4,220,433,936
  6. Step 6: Final answer
    x = 19,135,728,830.58

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.