Home / 20,608,143.01-30,912,321.15-12,082,500.77

Finding the Fourth Proportional to 20,608,143.01, 30,912,321.15 and 12,082,500.77

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Solution

The fourth proportional to 20,608,143.01, 30,912,321.15 and 12,082,500.77 is: 18,123,813.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608,143.01 : 30,912,321.15 = 12,082,500.77 : x
  2. Step 2: Convert to fraction form
    20,608,143.01/30,912,321.15 = 12,082,500.77/x
  3. Step 3: Cross multiply
    20,608,143.01x = 30,912,321.15 × 12,082,500.77
  4. Step 4: Simplify right side
    20,608,143.01x = 373,498,143,942,800.69
  5. Step 5: Solve for x
    x = 373,498,143,942,800.69/20,608,143.01
  6. Step 6: Final answer
    x = 18,123,813.67

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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.