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Finding the Fourth Proportional to 543,348,269.70, 815,022,404.55 and 505,084,517.70

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Solution

The fourth proportional to 543,348,269.70, 815,022,404.55 and 505,084,517.70 is: 757,626,776.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,348,269.70 : 815,022,404.55 = 505,084,517.70 : x
  2. Step 2: Convert to fraction form
    543,348,269.70/815,022,404.55 = 505,084,517.70/x
  3. Step 3: Cross multiply
    543,348,269.70x = 815,022,404.55 × 505,084,517.70
  4. Step 4: Simplify right side
    543,348,269.70x = 411,655,198,116,830,976
  5. Step 5: Solve for x
    x = 411,655,198,116,830,976/543,348,269.70
  6. Step 6: Final answer
    x = 757,626,776.55

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