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Finding the Fourth Proportional to 65,978,140.80, 99,014,450.40 and 27,667,149.60

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Solution

The fourth proportional to 65,978,140.80, 99,014,450.40 and 27,667,149.60 is: 41,520,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,978,140.80 : 99,014,450.40 = 27,667,149.60 : x
  2. Step 2: Convert to fraction form
    65,978,140.80/99,014,450.40 = 27,667,149.60/x
  3. Step 3: Cross multiply
    65,978,140.80x = 99,014,450.40 × 27,667,149.60
  4. Step 4: Simplify right side
    65,978,140.80x = 2,739,447,611,778,580
  5. Step 5: Solve for x
    x = 2,739,447,611,778,580/65,978,140.80
  6. Step 6: Final answer
    x = 41,520,533.60

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