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Finding the Fourth Proportional to 336,993,963.60, 505,490,945.40 and 191,371,256.40

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Solution

The fourth proportional to 336,993,963.60, 505,490,945.40 and 191,371,256.40 is: 287,056,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,993,963.60 : 505,490,945.40 = 191,371,256.40 : x
  2. Step 2: Convert to fraction form
    336,993,963.60/505,490,945.40 = 191,371,256.40/x
  3. Step 3: Cross multiply
    336,993,963.60x = 505,490,945.40 × 191,371,256.40
  4. Step 4: Simplify right side
    336,993,963.60x = 96,736,437,320,021,792
  5. Step 5: Solve for x
    x = 96,736,437,320,021,792/336,993,963.60
  6. Step 6: Final answer
    x = 287,056,884.60

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