Home / 13,474,997.70-20,212,496.55-3,890,688.90

Finding the Fourth Proportional to 13,474,997.70, 20,212,496.55 and 3,890,688.90

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Solution

The fourth proportional to 13,474,997.70, 20,212,496.55 and 3,890,688.90 is: 5,836,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474,997.70 : 20,212,496.55 = 3,890,688.90 : x
  2. Step 2: Convert to fraction form
    13,474,997.70/20,212,496.55 = 3,890,688.90/x
  3. Step 3: Cross multiply
    13,474,997.70x = 20,212,496.55 × 3,890,688.90
  4. Step 4: Simplify right side
    13,474,997.70x = 78,640,535,968,373.30
  5. Step 5: Solve for x
    x = 78,640,535,968,373.30/13,474,997.70
  6. Step 6: Final answer
    x = 5,836,033.35

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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.