Home / 252,451,149.41-378,909,503.22-128,041,093.31

Finding the Fourth Proportional to 252,451,149.41, 378,909,503.22 and 128,041,093.31

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Solution

The fourth proportional to 252,451,149.41, 378,909,503.22 and 128,041,093.31 is: 192,179,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,451,149.41 : 378,909,503.22 = 128,041,093.31 : x
  2. Step 2: Convert to fraction form
    252,451,149.41/378,909,503.22 = 128,041,093.31/x
  3. Step 3: Cross multiply
    252,451,149.41x = 378,909,503.22 × 128,041,093.31
  4. Step 4: Simplify right side
    252,451,149.41x = 48,515,987,055,702,504
  5. Step 5: Solve for x
    x = 48,515,987,055,702,504/252,451,149.41
  6. Step 6: Final answer
    x = 192,179,703.56

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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.