Home / 312,422,936.36-431,127,174.17-178,434,511.03

Finding the Fourth Proportional to 312,422,936.36, 431,127,174.17 and 178,434,511.03

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Solution

The fourth proportional to 312,422,936.36, 431,127,174.17 and 178,434,511.03 is: 246,230,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,422,936.36 : 431,127,174.17 = 178,434,511.03 : x
  2. Step 2: Convert to fraction form
    312,422,936.36/431,127,174.17 = 178,434,511.03/x
  3. Step 3: Cross multiply
    312,422,936.36x = 431,127,174.17 × 178,434,511.03
  4. Step 4: Simplify right side
    312,422,936.36x = 76,927,966,511,721,792
  5. Step 5: Solve for x
    x = 76,927,966,511,721,792/312,422,936.36
  6. Step 6: Final answer
    x = 246,230,214.11

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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.