Home / 309,522,786.48-426,899,661.12-191,982,209.04

Finding the Fourth Proportional to 309,522,786.48, 426,899,661.12 and 191,982,209.04

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Solution

The fourth proportional to 309,522,786.48, 426,899,661.12 and 191,982,209.04 is: 264,785,481.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,522,786.48 : 426,899,661.12 = 191,982,209.04 : x
  2. Step 2: Convert to fraction form
    309,522,786.48/426,899,661.12 = 191,982,209.04/x
  3. Step 3: Cross multiply
    309,522,786.48x = 426,899,661.12 × 191,982,209.04
  4. Step 4: Simplify right side
    309,522,786.48x = 81,957,139,980,244,992
  5. Step 5: Solve for x
    x = 81,957,139,980,244,992/309,522,786.48
  6. Step 6: Final answer
    x = 264,785,481.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.