Home / 20,608,205.46-30,912,415.11-12,082,563.42

Finding the Fourth Proportional to 20,608,205.46, 30,912,415.11 and 12,082,563.42

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Solution

The fourth proportional to 20,608,205.46, 30,912,415.11 and 12,082,563.42 is: 18,123,907.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608,205.46 : 30,912,415.11 = 12,082,563.42 : x
  2. Step 2: Convert to fraction form
    20,608,205.46/30,912,415.11 = 12,082,563.42/x
  3. Step 3: Cross multiply
    20,608,205.46x = 30,912,415.11 × 12,082,563.42
  4. Step 4: Simplify right side
    20,608,205.46x = 373,501,216,031,941.25
  5. Step 5: Solve for x
    x = 373,501,216,031,941.25/20,608,205.46
  6. Step 6: Final answer
    x = 18,123,907.82

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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.