Home / 404,323,976.80-606,485,965.20-388,451,605.60

Finding the Fourth Proportional to 404,323,976.80, 606,485,965.20 and 388,451,605.60

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Solution

The fourth proportional to 404,323,976.80, 606,485,965.20 and 388,451,605.60 is: 582,677,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,323,976.80 : 606,485,965.20 = 388,451,605.60 : x
  2. Step 2: Convert to fraction form
    404,323,976.80/606,485,965.20 = 388,451,605.60/x
  3. Step 3: Cross multiply
    404,323,976.80x = 606,485,965.20 × 388,451,605.60
  4. Step 4: Simplify right side
    404,323,976.80x = 235,590,446,955,805,760
  5. Step 5: Solve for x
    x = 235,590,446,955,805,760/404,323,976.80
  6. Step 6: Final answer
    x = 582,677,408.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.