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Finding the Third Proportional to 3,944,606,761.50 and 8,678,121,078.50

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Solution

The third proportional to 3,944,606,761.50 and 8,678,121,078.50 is: 19,091,836,019.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,944,606,761.50 : 8,678,121,078.50 = 8,678,121,078.50 : x
  2. Step 2: Convert to fraction form
    3,944,606,761.50/8,678,121,078.50 = 8,678,121,078.50/x
  3. Step 3: Cross multiply
    3,944,606,761.50x = 8,678,121,078.50 × 8,678,121,078.50
  4. Step 4: Simplify right side
    3,944,606,761.50x = 75,309,785,453,106,003,968
  5. Step 5: Solve for x
    x = 75,309,785,453,106,003,968/3,944,606,761.50
  6. Step 6: Final answer
    x = 19,091,836,019.79

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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.