Home / 12,305,768.40-18,458,652.60-3,784,997.70

Finding the Fourth Proportional to 12,305,768.40, 18,458,652.60 and 3,784,997.70

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Solution

The fourth proportional to 12,305,768.40, 18,458,652.60 and 3,784,997.70 is: 5,677,496.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305,768.40 : 18,458,652.60 = 3,784,997.70 : x
  2. Step 2: Convert to fraction form
    12,305,768.40/18,458,652.60 = 3,784,997.70/x
  3. Step 3: Cross multiply
    12,305,768.40x = 18,458,652.60 × 3,784,997.70
  4. Step 4: Simplify right side
    12,305,768.40x = 69,865,957,636,099.03
  5. Step 5: Solve for x
    x = 69,865,957,636,099.03/12,305,768.40
  6. Step 6: Final answer
    x = 5,677,496.55

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Similar ratio
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1.5x scale

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.