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Finding the Fourth Proportional to 288,259,978.86, 397,799,154.54 and 156,101,203.44

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Solution

The fourth proportional to 288,259,978.86, 397,799,154.54 and 156,101,203.44 is: 215,419,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,259,978.86 : 397,799,154.54 = 156,101,203.44 : x
  2. Step 2: Convert to fraction form
    288,259,978.86/397,799,154.54 = 156,101,203.44/x
  3. Step 3: Cross multiply
    288,259,978.86x = 397,799,154.54 × 156,101,203.44
  4. Step 4: Simplify right side
    288,259,978.86x = 62,096,926,751,108,544
  5. Step 5: Solve for x
    x = 62,096,926,751,108,544/288,259,978.86
  6. Step 6: Final answer
    x = 215,419,868.54

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Why These Related Problems?

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