Home / 171,522,168.57-257,138,601.03-74,404,715.67

Finding the Fourth Proportional to 171,522,168.57, 257,138,601.03 and 74,404,715.67

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Solution

The fourth proportional to 171,522,168.57, 257,138,601.03 and 74,404,715.67 is: 111,544,324.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,522,168.57 : 257,138,601.03 = 74,404,715.67 : x
  2. Step 2: Convert to fraction form
    171,522,168.57/257,138,601.03 = 74,404,715.67/x
  3. Step 3: Cross multiply
    171,522,168.57x = 257,138,601.03 × 74,404,715.67
  4. Step 4: Simplify right side
    171,522,168.57x = 19,132,324,497,418,720
  5. Step 5: Solve for x
    x = 19,132,324,497,418,720/171,522,168.57
  6. Step 6: Final answer
    x = 111,544,324.89

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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.