Home / 256,519,802.65-353,987,843.89-139,042,610.62

Finding the Fourth Proportional to 256,519,802.65, 353,987,843.89 and 139,042,610.62

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Solution

The fourth proportional to 256,519,802.65, 353,987,843.89 and 139,042,610.62 is: 191,873,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,802.65 : 353,987,843.89 = 139,042,610.62 : x
  2. Step 2: Convert to fraction form
    256,519,802.65/353,987,843.89 = 139,042,610.62/x
  3. Step 3: Cross multiply
    256,519,802.65x = 353,987,843.89 × 139,042,610.62
  4. Step 4: Simplify right side
    256,519,802.65x = 49,219,393,942,210,616
  5. Step 5: Solve for x
    x = 49,219,393,942,210,616/256,519,802.65
  6. Step 6: Final answer
    x = 191,873,662.13

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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.