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Finding the Fourth Proportional to 28,978,998.60, 43,468,497.90 and 20,475,942.60

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Solution

The fourth proportional to 28,978,998.60, 43,468,497.90 and 20,475,942.60 is: 30,713,913.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,978,998.60 : 43,468,497.90 = 20,475,942.60 : x
  2. Step 2: Convert to fraction form
    28,978,998.60/43,468,497.90 = 20,475,942.60/x
  3. Step 3: Cross multiply
    28,978,998.60x = 43,468,497.90 × 20,475,942.60
  4. Step 4: Simplify right side
    28,978,998.60x = 890,058,467,908,620.62
  5. Step 5: Solve for x
    x = 890,058,467,908,620.62/28,978,998.60
  6. Step 6: Final answer
    x = 30,713,913.90

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Why These Related Problems?

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