Home / 481,010,409.20-721,515,613.80-412,135,655.60

Finding the Fourth Proportional to 481,010,409.20, 721,515,613.80 and 412,135,655.60

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Solution

The fourth proportional to 481,010,409.20, 721,515,613.80 and 412,135,655.60 is: 618,203,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,010,409.20 : 721,515,613.80 = 412,135,655.60 : x
  2. Step 2: Convert to fraction form
    481,010,409.20/721,515,613.80 = 412,135,655.60/x
  3. Step 3: Cross multiply
    481,010,409.20x = 721,515,613.80 × 412,135,655.60
  4. Step 4: Simplify right side
    481,010,409.20x = 297,362,310,519,099,392
  5. Step 5: Solve for x
    x = 297,362,310,519,099,392/481,010,409.20
  6. Step 6: Final answer
    x = 618,203,483.40

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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.