Home / 14,185,910.40-21,278,865.60-8,512,540.80

Finding the Fourth Proportional to 14,185,910.40, 21,278,865.60 and 8,512,540.80

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Solution

The fourth proportional to 14,185,910.40, 21,278,865.60 and 8,512,540.80 is: 12,768,811.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,185,910.40 : 21,278,865.60 = 8,512,540.80 : x
  2. Step 2: Convert to fraction form
    14,185,910.40/21,278,865.60 = 8,512,540.80/x
  3. Step 3: Cross multiply
    14,185,910.40x = 21,278,865.60 × 8,512,540.80
  4. Step 4: Simplify right side
    14,185,910.40x = 181,137,211,597,716.50
  5. Step 5: Solve for x
    x = 181,137,211,597,716.50/14,185,910.40
  6. Step 6: Final answer
    x = 12,768,811.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.