Home / 481,002,893.20-721,504,339.80-412,128,139.60

Finding the Fourth Proportional to 481,002,893.20, 721,504,339.80 and 412,128,139.60

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Solution

The fourth proportional to 481,002,893.20, 721,504,339.80 and 412,128,139.60 is: 618,192,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,002,893.20 : 721,504,339.80 = 412,128,139.60 : x
  2. Step 2: Convert to fraction form
    481,002,893.20/721,504,339.80 = 412,128,139.60/x
  3. Step 3: Cross multiply
    481,002,893.20x = 721,504,339.80 × 412,128,139.60
  4. Step 4: Simplify right side
    481,002,893.20x = 297,352,241,275,100,224
  5. Step 5: Solve for x
    x = 297,352,241,275,100,224/481,002,893.20
  6. Step 6: Final answer
    x = 618,192,209.40

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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.