Home / 4,671,989.70-7,004,096.55-1,978,383.30

Finding the Fourth Proportional to 4,671,989.70, 7,004,096.55 and 1,978,383.30

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Solution

The fourth proportional to 4,671,989.70, 7,004,096.55 and 1,978,383.30 is: 2,965,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,671,989.70 : 7,004,096.55 = 1,978,383.30 : x
  2. Step 2: Convert to fraction form
    4,671,989.70/7,004,096.55 = 1,978,383.30/x
  3. Step 3: Cross multiply
    4,671,989.70x = 7,004,096.55 × 1,978,383.30
  4. Step 4: Simplify right side
    4,671,989.70x = 13,856,787,646,107.62
  5. Step 5: Solve for x
    x = 13,856,787,646,107.62/4,671,989.70
  6. Step 6: Final answer
    x = 2,965,928.55

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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.