Home / 256,519,803.24-353,987,844.68-139,042,611.20

Finding the Fourth Proportional to 256,519,803.24, 353,987,844.68 and 139,042,611.20

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Solution

The fourth proportional to 256,519,803.24, 353,987,844.68 and 139,042,611.20 is: 191,873,662.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,803.24 : 353,987,844.68 = 139,042,611.20 : x
  2. Step 2: Convert to fraction form
    256,519,803.24/353,987,844.68 = 139,042,611.20/x
  3. Step 3: Cross multiply
    256,519,803.24x = 353,987,844.68 × 139,042,611.20
  4. Step 4: Simplify right side
    256,519,803.24x = 49,219,394,257,367,224
  5. Step 5: Solve for x
    x = 49,219,394,257,367,224/256,519,803.24
  6. Step 6: Final answer
    x = 191,873,662.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.