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Finding the Third Proportional to 3,947,453,400 and 8,777,259,888

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Solution

The third proportional to 3,947,453,400 and 8,777,259,888 is: 19,516,453,605.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947,453,400 : 8,777,259,888 = 8,777,259,888 : x
  2. Step 2: Convert to fraction form
    3,947,453,400/8,777,259,888 = 8,777,259,888/x
  3. Step 3: Cross multiply
    3,947,453,400x = 8,777,259,888 × 8,777,259,888
  4. Step 4: Simplify right side
    3,947,453,400x = 77,040,291,141,493,768,192
  5. Step 5: Solve for x
    x = 77,040,291,141,493,768,192/3,947,453,400
  6. Step 6: Final answer
    x = 19,516,453,605.63

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.