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Finding the Fourth Proportional to 69,978,610.20, 104,960,828.20 and 18,865,795.80

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Solution

The fourth proportional to 69,978,610.20, 104,960,828.20 and 18,865,795.80 is: 28,296,783.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,978,610.20 : 104,960,828.20 = 18,865,795.80 : x
  2. Step 2: Convert to fraction form
    69,978,610.20/104,960,828.20 = 18,865,795.80/x
  3. Step 3: Cross multiply
    69,978,610.20x = 104,960,828.20 × 18,865,795.80
  4. Step 4: Simplify right side
    69,978,610.20x = 1,980,169,551,820,081.75
  5. Step 5: Solve for x
    x = 1,980,169,551,820,081.75/69,978,610.20
  6. Step 6: Final answer
    x = 28,296,783.06

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