Home / 8,768,905.60-13,147,137.60-3,978,889.60

Finding the Fourth Proportional to 8,768,905.60, 13,147,137.60 and 3,978,889.60

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Solution

The fourth proportional to 8,768,905.60, 13,147,137.60 and 3,978,889.60 is: 5,965,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768,905.60 : 13,147,137.60 = 3,978,889.60 : x
  2. Step 2: Convert to fraction form
    8,768,905.60/13,147,137.60 = 3,978,889.60/x
  3. Step 3: Cross multiply
    8,768,905.60x = 13,147,137.60 × 3,978,889.60
  4. Step 4: Simplify right side
    8,768,905.60x = 52,311,009,066,408.96
  5. Step 5: Solve for x
    x = 52,311,009,066,408.96/8,768,905.60
  6. Step 6: Final answer
    x = 5,965,511.71

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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.