Home / 20,204,253-30,313,908.72-12,123,028.80

Finding the Fourth Proportional to 20,204,253, 30,313,908.72 and 12,123,028.80

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Solution

The fourth proportional to 20,204,253, 30,313,908.72 and 12,123,028.80 is: 18,189,060.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204,253 : 30,313,908.72 = 12,123,028.80 : x
  2. Step 2: Convert to fraction form
    20,204,253/30,313,908.72 = 12,123,028.80/x
  3. Step 3: Cross multiply
    20,204,253x = 30,313,908.72 × 12,123,028.80
  4. Step 4: Simplify right side
    20,204,253x = 367,496,388,453,131.12
  5. Step 5: Solve for x
    x = 367,496,388,453,131.12/20,204,253
  6. Step 6: Final answer
    x = 18,189,060.91

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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.