Home / 20,269,778.32-30,404,667.44-5,123,709.84

Finding the Fourth Proportional to 20,269,778.32, 30,404,667.44 and 5,123,709.84

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Solution

The fourth proportional to 20,269,778.32, 30,404,667.44 and 5,123,709.84 is: 7,685,564.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269,778.32 : 30,404,667.44 = 5,123,709.84 : x
  2. Step 2: Convert to fraction form
    20,269,778.32/30,404,667.44 = 5,123,709.84/x
  3. Step 3: Cross multiply
    20,269,778.32x = 30,404,667.44 × 5,123,709.84
  4. Step 4: Simplify right side
    20,269,778.32x = 155,784,693,744,255.62
  5. Step 5: Solve for x
    x = 155,784,693,744,255.62/20,269,778.32
  6. Step 6: Final answer
    x = 7,685,564.75

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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.