Home / 256,519,804.96-353,987,847.08-139,042,612.94

Finding the Fourth Proportional to 256,519,804.96, 353,987,847.08 and 139,042,612.94

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Solution

The fourth proportional to 256,519,804.96, 353,987,847.08 and 139,042,612.94 is: 191,873,665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,804.96 : 353,987,847.08 = 139,042,612.94 : x
  2. Step 2: Convert to fraction form
    256,519,804.96/353,987,847.08 = 139,042,612.94/x
  3. Step 3: Cross multiply
    256,519,804.96x = 353,987,847.08 × 139,042,612.94
  4. Step 4: Simplify right side
    256,519,804.96x = 49,219,395,207,008,344
  5. Step 5: Solve for x
    x = 49,219,395,207,008,344/256,519,804.96
  6. Step 6: Final answer
    x = 191,873,665.33

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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.