Home / 256,519,797.22-353,987,836.42-139,042,605.18

Finding the Fourth Proportional to 256,519,797.22, 353,987,836.42 and 139,042,605.18

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Solution

The fourth proportional to 256,519,797.22, 353,987,836.42 and 139,042,605.18 is: 191,873,654.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,519,797.22 : 353,987,836.42 = 139,042,605.18 : x
  2. Step 2: Convert to fraction form
    256,519,797.22/353,987,836.42 = 139,042,605.18/x
  3. Step 3: Cross multiply
    256,519,797.22x = 353,987,836.42 × 139,042,605.18
  4. Step 4: Simplify right side
    256,519,797.22x = 49,219,390,977,868,488
  5. Step 5: Solve for x
    x = 49,219,390,977,868,488/256,519,797.22
  6. Step 6: Final answer
    x = 191,873,654.63

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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.