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Finding the Fourth Proportional to 18,978,983.56, 28,477,150.34 and 10,330,127.56

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Solution

The fourth proportional to 18,978,983.56, 28,477,150.34 and 10,330,127.56 is: 15,499,913.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,978,983.56 : 28,477,150.34 = 10,330,127.56 : x
  2. Step 2: Convert to fraction form
    18,978,983.56/28,477,150.34 = 10,330,127.56/x
  3. Step 3: Cross multiply
    18,978,983.56x = 28,477,150.34 × 10,330,127.56
  4. Step 4: Simplify right side
    18,978,983.56x = 294,172,595,557,497.38
  5. Step 5: Solve for x
    x = 294,172,595,557,497.38/18,978,983.56
  6. Step 6: Final answer
    x = 15,499,913.08

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