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Finding the Fourth Proportional to 442,978,340.80, 664,467,511.20 and 442,978,340.80

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Solution

The fourth proportional to 442,978,340.80, 664,467,511.20 and 442,978,340.80 is: 664,467,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,978,340.80 : 664,467,511.20 = 442,978,340.80 : x
  2. Step 2: Convert to fraction form
    442,978,340.80/664,467,511.20 = 442,978,340.80/x
  3. Step 3: Cross multiply
    442,978,340.80x = 664,467,511.20 × 442,978,340.80
  4. Step 4: Simplify right side
    442,978,340.80x = 294,344,715,626,881,472
  5. Step 5: Solve for x
    x = 294,344,715,626,881,472/442,978,340.80
  6. Step 6: Final answer
    x = 664,467,511.20

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Why These Related Problems?

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