Home / 12,420,676.75-18,631,015.13-3,445,228.75

Finding the Fourth Proportional to 12,420,676.75, 18,631,015.13 and 3,445,228.75

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Solution

The fourth proportional to 12,420,676.75, 18,631,015.13 and 3,445,228.75 is: 5,167,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420,676.75 : 18,631,015.13 = 3,445,228.75 : x
  2. Step 2: Convert to fraction form
    12,420,676.75/18,631,015.13 = 3,445,228.75/x
  3. Step 3: Cross multiply
    12,420,676.75x = 18,631,015.13 × 3,445,228.75
  4. Step 4: Simplify right side
    12,420,676.75x = 64,188,108,967,560.98
  5. Step 5: Solve for x
    x = 64,188,108,967,560.98/12,420,676.75
  6. Step 6: Final answer
    x = 5,167,843.13

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Similar ratio
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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.