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Finding the Third Proportional to 4,131,986 and 8,927,910

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Solution

The third proportional to 4,131,986 and 8,927,910 is: 19,290,379.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,131,986 : 8,927,910 = 8,927,910 : x
  2. Step 2: Convert to fraction form
    4,131,986/8,927,910 = 8,927,910/x
  3. Step 3: Cross multiply
    4,131,986x = 8,927,910 × 8,927,910
  4. Step 4: Simplify right side
    4,131,986x = 79,707,576,968,100
  5. Step 5: Solve for x
    x = 79,707,576,968,100/4,131,986
  6. Step 6: Final answer
    x = 19,290,379.24

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.