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Finding the Third Proportional to 3,890,043 and 8,379,324

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Solution

The third proportional to 3,890,043 and 8,379,324 is: 18,049,433.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890,043 : 8,379,324 = 8,379,324 : x
  2. Step 2: Convert to fraction form
    3,890,043/8,379,324 = 8,379,324/x
  3. Step 3: Cross multiply
    3,890,043x = 8,379,324 × 8,379,324
  4. Step 4: Simplify right side
    3,890,043x = 70,213,070,696,976
  5. Step 5: Solve for x
    x = 70,213,070,696,976/3,890,043
  6. Step 6: Final answer
    x = 18,049,433.05

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.