Home / 312,294,459.60-431,162,295.30-200,978,740.26

Finding the Fourth Proportional to 312,294,459.60, 431,162,295.30 and 200,978,740.26

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Solution

The fourth proportional to 312,294,459.60, 431,162,295.30 and 200,978,740.26 is: 277,476,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,294,459.60 : 431,162,295.30 = 200,978,740.26 : x
  2. Step 2: Convert to fraction form
    312,294,459.60/431,162,295.30 = 200,978,740.26/x
  3. Step 3: Cross multiply
    312,294,459.60x = 431,162,295.30 × 200,978,740.26
  4. Step 4: Simplify right side
    312,294,459.60x = 86,654,454,957,004,112
  5. Step 5: Solve for x
    x = 86,654,454,957,004,112/312,294,459.60
  6. Step 6: Final answer
    x = 277,476,760.45

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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.