Home / 256,519,800.65-353,987,841.14-139,042,608.62

Finding the Fourth Proportional to 256,519,800.65, 353,987,841.14 and 139,042,608.62

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Solution

The fourth proportional to 256,519,800.65, 353,987,841.14 and 139,042,608.62 is: 191,873,659.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,800.65 : 353,987,841.14 = 139,042,608.62 : x
  2. Step 2: Convert to fraction form
    256,519,800.65/353,987,841.14 = 139,042,608.62/x
  3. Step 3: Cross multiply
    256,519,800.65x = 353,987,841.14 × 139,042,608.62
  4. Step 4: Simplify right side
    256,519,800.65x = 49,219,392,851,172,544
  5. Step 5: Solve for x
    x = 49,219,392,851,172,544/256,519,800.65
  6. Step 6: Final answer
    x = 191,873,659.37

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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.