Home / 2,133,821.70-3,200,732.55-1,978,301.70

Finding the Fourth Proportional to 2,133,821.70, 3,200,732.55 and 1,978,301.70

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Solution

The fourth proportional to 2,133,821.70, 3,200,732.55 and 1,978,301.70 is: 2,967,452.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133,821.70 : 3,200,732.55 = 1,978,301.70 : x
  2. Step 2: Convert to fraction form
    2,133,821.70/3,200,732.55 = 1,978,301.70/x
  3. Step 3: Cross multiply
    2,133,821.70x = 3,200,732.55 × 1,978,301.70
  4. Step 4: Simplify right side
    2,133,821.70x = 6,332,014,644,910.34
  5. Step 5: Solve for x
    x = 6,332,014,644,910.34/2,133,821.70
  6. Step 6: Final answer
    x = 2,967,452.55

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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.