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Finding the Fourth Proportional to 449,987,499.09, 620,978,174.28 and 249,044,769.18

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Solution

The fourth proportional to 449,987,499.09, 620,978,174.28 and 249,044,769.18 is: 343,679,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,987,499.09 : 620,978,174.28 = 249,044,769.18 : x
  2. Step 2: Convert to fraction form
    449,987,499.09/620,978,174.28 = 249,044,769.18/x
  3. Step 3: Cross multiply
    449,987,499.09x = 620,978,174.28 × 249,044,769.18
  4. Step 4: Simplify right side
    449,987,499.09x = 154,651,366,079,380,416
  5. Step 5: Solve for x
    x = 154,651,366,079,380,416/449,987,499.09
  6. Step 6: Final answer
    x = 343,679,249.74

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Why These Related Problems?

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