Home / 309,765,780.24-427,507,656.30-231,313,131.06

Finding the Fourth Proportional to 309,765,780.24, 427,507,656.30 and 231,313,131.06

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Solution

The fourth proportional to 309,765,780.24, 427,507,656.30 and 231,313,131.06 is: 319,235,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,765,780.24 : 427,507,656.30 = 231,313,131.06 : x
  2. Step 2: Convert to fraction form
    309,765,780.24/427,507,656.30 = 231,313,131.06/x
  3. Step 3: Cross multiply
    309,765,780.24x = 427,507,656.30 × 231,313,131.06
  4. Step 4: Simplify right side
    309,765,780.24x = 98,888,134,530,875,344
  5. Step 5: Solve for x
    x = 98,888,134,530,875,344/309,765,780.24
  6. Step 6: Final answer
    x = 319,235,179.74

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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.