Home / 256,519,803.65-353,987,845.27-139,042,611.62

Finding the Fourth Proportional to 256,519,803.65, 353,987,845.27 and 139,042,611.62

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Solution

The fourth proportional to 256,519,803.65, 353,987,845.27 and 139,042,611.62 is: 191,873,663.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,803.65 : 353,987,845.27 = 139,042,611.62 : x
  2. Step 2: Convert to fraction form
    256,519,803.65/353,987,845.27 = 139,042,611.62/x
  3. Step 3: Cross multiply
    256,519,803.65x = 353,987,845.27 × 139,042,611.62
  4. Step 4: Simplify right side
    256,519,803.65x = 49,219,394,488,077,264
  5. Step 5: Solve for x
    x = 49,219,394,488,077,264/256,519,803.65
  6. Step 6: Final answer
    x = 191,873,663.51

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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.