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Finding the Third Proportional to 12,464,989 and 18,647,803

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Solution

The third proportional to 12,464,989 and 18,647,803 is: 27,897,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,464,989 : 18,647,803 = 18,647,803 : x
  2. Step 2: Convert to fraction form
    12,464,989/18,647,803 = 18,647,803/x
  3. Step 3: Cross multiply
    12,464,989x = 18,647,803 × 18,647,803
  4. Step 4: Simplify right side
    12,464,989x = 347,740,556,726,809
  5. Step 5: Solve for x
    x = 347,740,556,726,809/12,464,989
  6. Step 6: Final answer
    x = 27,897,381.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.