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Finding the Fourth Proportional to 361,677,978.42, 541,834,279.10 and 213,683,946

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Solution

The fourth proportional to 361,677,978.42, 541,834,279.10 and 213,683,946 is: 320,122,577.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,677,978.42 : 541,834,279.10 = 213,683,946 : x
  2. Step 2: Convert to fraction form
    361,677,978.42/541,834,279.10 = 213,683,946/x
  3. Step 3: Cross multiply
    361,677,978.42x = 541,834,279.10 × 213,683,946
  4. Step 4: Simplify right side
    361,677,978.42x = 115,781,286,836,153,328
  5. Step 5: Solve for x
    x = 115,781,286,836,153,328/361,677,978.42
  6. Step 6: Final answer
    x = 320,122,577.94

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