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Finding the Fourth Proportional to 57,978,536.80, 86,978,302.80 and 29,152,127.20

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Solution

The fourth proportional to 57,978,536.80, 86,978,302.80 and 29,152,127.20 is: 43,733,469.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,978,536.80 : 86,978,302.80 = 29,152,127.20 : x
  2. Step 2: Convert to fraction form
    57,978,536.80/86,978,302.80 = 29,152,127.20/x
  3. Step 3: Cross multiply
    57,978,536.80x = 86,978,302.80 × 29,152,127.20
  4. Step 4: Simplify right side
    57,978,536.80x = 2,535,602,546,865,716
  5. Step 5: Solve for x
    x = 2,535,602,546,865,716/57,978,536.80
  6. Step 6: Final answer
    x = 43,733,469.09

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