Home / 18,681,907.80-28,022,861.70-11,123,635.80

Finding the Fourth Proportional to 18,681,907.80, 28,022,861.70 and 11,123,635.80

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Solution

The fourth proportional to 18,681,907.80, 28,022,861.70 and 11,123,635.80 is: 16,685,453.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,907.80 : 28,022,861.70 = 11,123,635.80 : x
  2. Step 2: Convert to fraction form
    18,681,907.80/28,022,861.70 = 11,123,635.80/x
  3. Step 3: Cross multiply
    18,681,907.80x = 28,022,861.70 × 11,123,635.80
  4. Step 4: Simplify right side
    18,681,907.80x = 311,716,107,624,568.88
  5. Step 5: Solve for x
    x = 311,716,107,624,568.88/18,681,907.80
  6. Step 6: Final answer
    x = 16,685,453.70

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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.