Home / 256,519,796.96-353,987,836.06-139,042,604.93

Finding the Fourth Proportional to 256,519,796.96, 353,987,836.06 and 139,042,604.93

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Solution

The fourth proportional to 256,519,796.96, 353,987,836.06 and 139,042,604.93 is: 191,873,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,796.96 : 353,987,836.06 = 139,042,604.93 : x
  2. Step 2: Convert to fraction form
    256,519,796.96/353,987,836.06 = 139,042,604.93/x
  3. Step 3: Cross multiply
    256,519,796.96x = 353,987,836.06 × 139,042,604.93
  4. Step 4: Simplify right side
    256,519,796.96x = 49,219,390,836,851,040
  5. Step 5: Solve for x
    x = 49,219,390,836,851,040/256,519,796.96
  6. Step 6: Final answer
    x = 191,873,654.28

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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.