Home / 220,247,840.20-330,361,262.70-74,667,123.40

Finding the Fourth Proportional to 220,247,840.20, 330,361,262.70 and 74,667,123.40

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Solution

The fourth proportional to 220,247,840.20, 330,361,262.70 and 74,667,123.40 is: 111,997,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,247,840.20 : 330,361,262.70 = 74,667,123.40 : x
  2. Step 2: Convert to fraction form
    220,247,840.20/330,361,262.70 = 74,667,123.40/x
  3. Step 3: Cross multiply
    220,247,840.20x = 330,361,262.70 × 74,667,123.40
  4. Step 4: Simplify right side
    220,247,840.20x = 24,667,125,168,600,720
  5. Step 5: Solve for x
    x = 24,667,125,168,600,720/220,247,840.20
  6. Step 6: Final answer
    x = 111,997,126.27

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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.