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Finding the Fourth Proportional to 392,839,978.02, 542,132,257.02 and 214,233,611.37

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Solution

The fourth proportional to 392,839,978.02, 542,132,257.02 and 214,233,611.37 is: 295,649,520.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,839,978.02 : 542,132,257.02 = 214,233,611.37 : x
  2. Step 2: Convert to fraction form
    392,839,978.02/542,132,257.02 = 214,233,611.37/x
  3. Step 3: Cross multiply
    392,839,978.02x = 542,132,257.02 × 214,233,611.37
  4. Step 4: Simplify right side
    392,839,978.02x = 116,142,951,261,563,632
  5. Step 5: Solve for x
    x = 116,142,951,261,563,632/392,839,978.02
  6. Step 6: Final answer
    x = 295,649,520.82

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Why These Related Problems?

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