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Finding the Third Proportional to 239,601,405 and 342,395,994

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Solution

The third proportional to 239,601,405 and 342,395,994 is: 489,291,858.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,601,405 : 342,395,994 = 342,395,994 : x
  2. Step 2: Convert to fraction form
    239,601,405/342,395,994 = 342,395,994/x
  3. Step 3: Cross multiply
    239,601,405x = 342,395,994 × 342,395,994
  4. Step 4: Simplify right side
    239,601,405x = 117,235,016,707,248,032
  5. Step 5: Solve for x
    x = 117,235,016,707,248,032/239,601,405
  6. Step 6: Final answer
    x = 489,291,858.31

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.