Home / 212,188,049.70-318,282,074.55-202,143,814.80

Finding the Fourth Proportional to 212,188,049.70, 318,282,074.55 and 202,143,814.80

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Solution

The fourth proportional to 212,188,049.70, 318,282,074.55 and 202,143,814.80 is: 303,215,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,188,049.70 : 318,282,074.55 = 202,143,814.80 : x
  2. Step 2: Convert to fraction form
    212,188,049.70/318,282,074.55 = 202,143,814.80/x
  3. Step 3: Cross multiply
    212,188,049.70x = 318,282,074.55 × 202,143,814.80
  4. Step 4: Simplify right side
    212,188,049.70x = 64,338,752,731,995,000
  5. Step 5: Solve for x
    x = 64,338,752,731,995,000/212,188,049.70
  6. Step 6: Final answer
    x = 303,215,722.20

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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.