Home / 258,917,402.40-388,376,103.60-162,171,520.80

Finding the Fourth Proportional to 258,917,402.40, 388,376,103.60 and 162,171,520.80

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Solution

The fourth proportional to 258,917,402.40, 388,376,103.60 and 162,171,520.80 is: 243,257,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,917,402.40 : 388,376,103.60 = 162,171,520.80 : x
  2. Step 2: Convert to fraction form
    258,917,402.40/388,376,103.60 = 162,171,520.80/x
  3. Step 3: Cross multiply
    258,917,402.40x = 388,376,103.60 × 162,171,520.80
  4. Step 4: Simplify right side
    258,917,402.40x = 62,983,543,363,190,360
  5. Step 5: Solve for x
    x = 62,983,543,363,190,360/258,917,402.40
  6. Step 6: Final answer
    x = 243,257,281.20

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