Home / 512,489,176.54-769,960,144.18-328,616,900.04

Finding the Fourth Proportional to 512,489,176.54, 769,960,144.18 and 328,616,900.04

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Solution

The fourth proportional to 512,489,176.54, 769,960,144.18 and 328,616,900.04 is: 493,711,725.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,489,176.54 : 769,960,144.18 = 328,616,900.04 : x
  2. Step 2: Convert to fraction form
    512,489,176.54/769,960,144.18 = 328,616,900.04/x
  3. Step 3: Cross multiply
    512,489,176.54x = 769,960,144.18 × 328,616,900.04
  4. Step 4: Simplify right side
    512,489,176.54x = 253,021,915,734,783,040
  5. Step 5: Solve for x
    x = 253,021,915,734,783,040/512,489,176.54
  6. Step 6: Final answer
    x = 493,711,725.67

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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.