Home / 20,847,928.89-31,275,822.14-7,897,958.31

Finding the Fourth Proportional to 20,847,928.89, 31,275,822.14 and 7,897,958.31

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Solution

The fourth proportional to 20,847,928.89, 31,275,822.14 and 7,897,958.31 is: 11,848,425.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847,928.89 : 31,275,822.14 = 7,897,958.31 : x
  2. Step 2: Convert to fraction form
    20,847,928.89/31,275,822.14 = 7,897,958.31/x
  3. Step 3: Cross multiply
    20,847,928.89x = 31,275,822.14 × 7,897,958.31
  4. Step 4: Simplify right side
    20,847,928.89x = 247,015,139,372,694.97
  5. Step 5: Solve for x
    x = 247,015,139,372,694.97/20,847,928.89
  6. Step 6: Final answer
    x = 11,848,425.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.