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Finding the Third Proportional to 3,898,489,189.50 and 8,511,367,739.06

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Solution

The third proportional to 3,898,489,189.50 and 8,511,367,739.06 is: 18,582,424,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898,489,189.50 : 8,511,367,739.06 = 8,511,367,739.06 : x
  2. Step 2: Convert to fraction form
    3,898,489,189.50/8,511,367,739.06 = 8,511,367,739.06/x
  3. Step 3: Cross multiply
    3,898,489,189.50x = 8,511,367,739.06 × 8,511,367,739.06
  4. Step 4: Simplify right side
    3,898,489,189.50x = 72,443,380,789,553,889,280
  5. Step 5: Solve for x
    x = 72,443,380,789,553,889,280/3,898,489,189.50
  6. Step 6: Final answer
    x = 18,582,424,438.85

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.