Home / 256,519,804.65-353,987,846.65-139,042,612.62

Finding the Fourth Proportional to 256,519,804.65, 353,987,846.65 and 139,042,612.62

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Solution

The fourth proportional to 256,519,804.65, 353,987,846.65 and 139,042,612.62 is: 191,873,664.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,804.65 : 353,987,846.65 = 139,042,612.62 : x
  2. Step 2: Convert to fraction form
    256,519,804.65/353,987,846.65 = 139,042,612.62/x
  3. Step 3: Cross multiply
    256,519,804.65x = 353,987,846.65 × 139,042,612.62
  4. Step 4: Simplify right side
    256,519,804.65x = 49,219,395,033,943,912
  5. Step 5: Solve for x
    x = 49,219,395,033,943,912/256,519,804.65
  6. Step 6: Final answer
    x = 191,873,664.89

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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.