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Finding the Third Proportional to 3,931,336.88 and 8,409,163.88

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Solution

The third proportional to 3,931,336.88 and 8,409,163.88 is: 17,987,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931,336.88 : 8,409,163.88 = 8,409,163.88 : x
  2. Step 2: Convert to fraction form
    3,931,336.88/8,409,163.88 = 8,409,163.88/x
  3. Step 3: Cross multiply
    3,931,336.88x = 8,409,163.88 × 8,409,163.88
  4. Step 4: Simplify right side
    3,931,336.88x = 70,714,037,076,605.02
  5. Step 5: Solve for x
    x = 70,714,037,076,605.02/3,931,336.88
  6. Step 6: Final answer
    x = 17,987,274.90

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.