Home / 256,519,832.41-353,987,884.80-139,042,640.31

Finding the Fourth Proportional to 256,519,832.41, 353,987,884.80 and 139,042,640.31

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Solution

The fourth proportional to 256,519,832.41, 353,987,884.80 and 139,042,640.31 is: 191,873,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,832.41 : 353,987,884.80 = 139,042,640.31 : x
  2. Step 2: Convert to fraction form
    256,519,832.41/353,987,884.80 = 139,042,640.31/x
  3. Step 3: Cross multiply
    256,519,832.41x = 353,987,884.80 × 139,042,640.31
  4. Step 4: Simplify right side
    256,519,832.41x = 49,219,410,139,016,664
  5. Step 5: Solve for x
    x = 49,219,410,139,016,664/256,519,832.41
  6. Step 6: Final answer
    x = 191,873,703.01

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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.