Home / 12,989,128.20-19,479,099.60-4,467,482.70

Finding the Fourth Proportional to 12,989,128.20, 19,479,099.60 and 4,467,482.70

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Solution

The fourth proportional to 12,989,128.20, 19,479,099.60 and 4,467,482.70 is: 6,699,644.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989,128.20 : 19,479,099.60 = 4,467,482.70 : x
  2. Step 2: Convert to fraction form
    12,989,128.20/19,479,099.60 = 4,467,482.70/x
  3. Step 3: Cross multiply
    12,989,128.20x = 19,479,099.60 × 4,467,482.70
  4. Step 4: Simplify right side
    12,989,128.20x = 87,022,540,474,576.94
  5. Step 5: Solve for x
    x = 87,022,540,474,576.94/12,989,128.20
  6. Step 6: Final answer
    x = 6,699,644.44

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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.