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Finding the Third Proportional to 64,722,159 and 139,049,379

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Solution

The third proportional to 64,722,159 and 139,049,379 is: 298,734,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,722,159 : 139,049,379 = 139,049,379 : x
  2. Step 2: Convert to fraction form
    64,722,159/139,049,379 = 139,049,379/x
  3. Step 3: Cross multiply
    64,722,159x = 139,049,379 × 139,049,379
  4. Step 4: Simplify right side
    64,722,159x = 19,334,729,800,285,640
  5. Step 5: Solve for x
    x = 19,334,729,800,285,640/64,722,159
  6. Step 6: Final answer
    x = 298,734,314.48

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.