Home / 5,421,122.37-8,131,639.68-1,377,621.81

Finding the Fourth Proportional to 5,421,122.37, 8,131,639.68 and 1,377,621.81

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Solution

The fourth proportional to 5,421,122.37, 8,131,639.68 and 1,377,621.81 is: 2,066,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421,122.37 : 8,131,639.68 = 1,377,621.81 : x
  2. Step 2: Convert to fraction form
    5,421,122.37/8,131,639.68 = 1,377,621.81/x
  3. Step 3: Cross multiply
    5,421,122.37x = 8,131,639.68 × 1,377,621.81
  4. Step 4: Simplify right side
    5,421,122.37x = 11,202,324,174,229.42
  5. Step 5: Solve for x
    x = 11,202,324,174,229.42/5,421,122.37
  6. Step 6: Final answer
    x = 2,066,421.57

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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.