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Finding the Fourth Proportional to 482,893,607.70, 724,340,411.55 and 405,409,509.90

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Solution

The fourth proportional to 482,893,607.70, 724,340,411.55 and 405,409,509.90 is: 608,114,264.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,893,607.70 : 724,340,411.55 = 405,409,509.90 : x
  2. Step 2: Convert to fraction form
    482,893,607.70/724,340,411.55 = 405,409,509.90/x
  3. Step 3: Cross multiply
    482,893,607.70x = 724,340,411.55 × 405,409,509.90
  4. Step 4: Simplify right side
    482,893,607.70x = 293,654,491,247,249,792
  5. Step 5: Solve for x
    x = 293,654,491,247,249,792/482,893,607.70
  6. Step 6: Final answer
    x = 608,114,264.85

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