Home / 256,519,810.41-353,987,854.56-139,042,618.37

Finding the Fourth Proportional to 256,519,810.41, 353,987,854.56 and 139,042,618.37

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Solution

The fourth proportional to 256,519,810.41, 353,987,854.56 and 139,042,618.37 is: 191,873,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,810.41 : 353,987,854.56 = 139,042,618.37 : x
  2. Step 2: Convert to fraction form
    256,519,810.41/353,987,854.56 = 139,042,618.37/x
  3. Step 3: Cross multiply
    256,519,810.41x = 353,987,854.56 × 139,042,618.37
  4. Step 4: Simplify right side
    256,519,810.41x = 49,219,398,168,758,664
  5. Step 5: Solve for x
    x = 49,219,398,168,758,664/256,519,810.41
  6. Step 6: Final answer
    x = 191,873,672.80

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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.