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Finding the Fourth Proportional to 653,505,310.80, 978,914,273.40 and 449,264,005.20

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Solution

The fourth proportional to 653,505,310.80, 978,914,273.40 and 449,264,005.20 is: 672,972,261.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,505,310.80 : 978,914,273.40 = 449,264,005.20 : x
  2. Step 2: Convert to fraction form
    653,505,310.80/978,914,273.40 = 449,264,005.20/x
  3. Step 3: Cross multiply
    653,505,310.80x = 978,914,273.40 × 449,264,005.20
  4. Step 4: Simplify right side
    653,505,310.80x = 439,790,947,215,131,776
  5. Step 5: Solve for x
    x = 439,790,947,215,131,776/653,505,310.80
  6. Step 6: Final answer
    x = 672,972,261.96

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Why These Related Problems?

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