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Finding the Third Proportional to 3,887,766 and 8,638,423.50

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Solution

The third proportional to 3,887,766 and 8,638,423.50 is: 19,194,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887,766 : 8,638,423.50 = 8,638,423.50 : x
  2. Step 2: Convert to fraction form
    3,887,766/8,638,423.50 = 8,638,423.50/x
  3. Step 3: Cross multiply
    3,887,766x = 8,638,423.50 × 8,638,423.50
  4. Step 4: Simplify right side
    3,887,766x = 74,622,360,565,352.25
  5. Step 5: Solve for x
    x = 74,622,360,565,352.25/3,887,766
  6. Step 6: Final answer
    x = 19,194,149.18

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.