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Finding the Third Proportional to 5,189,913 and 7,987,977

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Solution

The third proportional to 5,189,913 and 7,987,977 is: 12,294,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189,913 : 7,987,977 = 7,987,977 : x
  2. Step 2: Convert to fraction form
    5,189,913/7,987,977 = 7,987,977/x
  3. Step 3: Cross multiply
    5,189,913x = 7,987,977 × 7,987,977
  4. Step 4: Simplify right side
    5,189,913x = 63,807,776,552,529
  5. Step 5: Solve for x
    x = 63,807,776,552,529/5,189,913
  6. Step 6: Final answer
    x = 12,294,575.37

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.