Home / 12,299,891.76-18,443,644.32-4,099,629.96

Finding the Fourth Proportional to 12,299,891.76, 18,443,644.32 and 4,099,629.96

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Solution

The fourth proportional to 12,299,891.76, 18,443,644.32 and 4,099,629.96 is: 6,147,380.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299,891.76 : 18,443,644.32 = 4,099,629.96 : x
  2. Step 2: Convert to fraction form
    12,299,891.76/18,443,644.32 = 4,099,629.96/x
  3. Step 3: Cross multiply
    12,299,891.76x = 18,443,644.32 × 4,099,629.96
  4. Step 4: Simplify right side
    12,299,891.76x = 75,612,116,825,855.83
  5. Step 5: Solve for x
    x = 75,612,116,825,855.83/12,299,891.76
  6. Step 6: Final answer
    x = 6,147,380.67

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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.