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Finding the Third Proportional to 4,866,381,250 and 9,990,743,891

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Solution

The third proportional to 4,866,381,250 and 9,990,743,891 is: 20,511,126,927.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866,381,250 : 9,990,743,891 = 9,990,743,891 : x
  2. Step 2: Convert to fraction form
    4,866,381,250/9,990,743,891 = 9,990,743,891/x
  3. Step 3: Cross multiply
    4,866,381,250x = 9,990,743,891 × 9,990,743,891
  4. Step 4: Simplify right side
    4,866,381,250x = 99,814,963,495,553,826,816
  5. Step 5: Solve for x
    x = 99,814,963,495,553,826,816/4,866,381,250
  6. Step 6: Final answer
    x = 20,511,126,927.34

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.