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Finding the Third Proportional to 1,899,376,478 and 4,185,175,079

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Solution

The third proportional to 1,899,376,478 and 4,185,175,079 is: 9,221,810,759.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,376,478 : 4,185,175,079 = 4,185,175,079 : x
  2. Step 2: Convert to fraction form
    1,899,376,478/4,185,175,079 = 4,185,175,079/x
  3. Step 3: Cross multiply
    1,899,376,478x = 4,185,175,079 × 4,185,175,079
  4. Step 4: Simplify right side
    1,899,376,478x = 17,515,690,441,882,656,768
  5. Step 5: Solve for x
    x = 17,515,690,441,882,656,768/1,899,376,478
  6. Step 6: Final answer
    x = 9,221,810,759.88

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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.