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Finding the Third Proportional to 3,977,885.50 and 8,536,420

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Solution

The third proportional to 3,977,885.50 and 8,536,420 is: 18,318,894.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977,885.50 : 8,536,420 = 8,536,420 : x
  2. Step 2: Convert to fraction form
    3,977,885.50/8,536,420 = 8,536,420/x
  3. Step 3: Cross multiply
    3,977,885.50x = 8,536,420 × 8,536,420
  4. Step 4: Simplify right side
    3,977,885.50x = 72,870,466,416,400
  5. Step 5: Solve for x
    x = 72,870,466,416,400/3,977,885.50
  6. Step 6: Final answer
    x = 18,318,894.90

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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.