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Finding the Third Proportional to 17,977,690 and 39,620,126

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Solution

The third proportional to 17,977,690 and 39,620,126 is: 87,316,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,977,690 : 39,620,126 = 39,620,126 : x
  2. Step 2: Convert to fraction form
    17,977,690/39,620,126 = 39,620,126/x
  3. Step 3: Cross multiply
    17,977,690x = 39,620,126 × 39,620,126
  4. Step 4: Simplify right side
    17,977,690x = 1,569,754,384,255,876
  5. Step 5: Solve for x
    x = 1,569,754,384,255,876/17,977,690
  6. Step 6: Final answer
    x = 87,316,801.23

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.