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Finding the Third Proportional to 4,079,605.50 and 8,879,821.50

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Solution

The third proportional to 4,079,605.50 and 8,879,821.50 is: 19,328,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079,605.50 : 8,879,821.50 = 8,879,821.50 : x
  2. Step 2: Convert to fraction form
    4,079,605.50/8,879,821.50 = 8,879,821.50/x
  3. Step 3: Cross multiply
    4,079,605.50x = 8,879,821.50 × 8,879,821.50
  4. Step 4: Simplify right side
    4,079,605.50x = 78,851,229,871,862.25
  5. Step 5: Solve for x
    x = 78,851,229,871,862.25/4,079,605.50
  6. Step 6: Final answer
    x = 19,328,150.69

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.