Home / 5,178,676.46-7,147,415.32-3,115,777.10

Finding the Fourth Proportional to 5,178,676.46, 7,147,415.32 and 3,115,777.10

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Solution

The fourth proportional to 5,178,676.46, 7,147,415.32 and 3,115,777.10 is: 4,300,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,676.46 : 7,147,415.32 = 3,115,777.10 : x
  2. Step 2: Convert to fraction form
    5,178,676.46/7,147,415.32 = 3,115,777.10/x
  3. Step 3: Cross multiply
    5,178,676.46x = 7,147,415.32 × 3,115,777.10
  4. Step 4: Simplify right side
    5,178,676.46x = 22,269,752,978,245.17
  5. Step 5: Solve for x
    x = 22,269,752,978,245.17/5,178,676.46
  6. Step 6: Final answer
    x = 4,300,278.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.