Home / 512,351,993,221.64-768,373,260,785.34-154,108,866,665.21

Finding the Fourth Proportional to 512,351,993,221.64, 768,373,260,785.34 and 154,108,866,665.21

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Solution

The fourth proportional to 512,351,993,221.64, 768,373,260,785.34 and 154,108,866,665.21 is: 231,116,759,497.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,351,993,221.64 : 768,373,260,785.34 = 154,108,866,665.21 : x
  2. Step 2: Convert to fraction form
    512,351,993,221.64/768,373,260,785.34 = 154,108,866,665.21/x
  3. Step 3: Cross multiply
    512,351,993,221.64x = 768,373,260,785.34 × 154,108,866,665.21
  4. Step 4: Simplify right side
    512,351,993,221.64x = 118,413,132,395,480,581,406,720
  5. Step 5: Solve for x
    x = 118,413,132,395,480,581,406,720/512,351,993,221.64
  6. Step 6: Final answer
    x = 231,116,759,497.52

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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.