Home / 12,097,408.20-18,146,112.30-3,121,960.20

Finding the Fourth Proportional to 12,097,408.20, 18,146,112.30 and 3,121,960.20

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Solution

The fourth proportional to 12,097,408.20, 18,146,112.30 and 3,121,960.20 is: 4,682,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,408.20 : 18,146,112.30 = 3,121,960.20 : x
  2. Step 2: Convert to fraction form
    12,097,408.20/18,146,112.30 = 3,121,960.20/x
  3. Step 3: Cross multiply
    12,097,408.20x = 18,146,112.30 × 3,121,960.20
  4. Step 4: Simplify right side
    12,097,408.20x = 56,651,440,385,330.47
  5. Step 5: Solve for x
    x = 56,651,440,385,330.47/12,097,408.20
  6. Step 6: Final answer
    x = 4,682,940.30

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Double scale
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Similar ratio
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1.5x scale

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.