Home / 31,956,101.20-47,957,771.40-21,169,817.20

Finding the Fourth Proportional to 31,956,101.20, 47,957,771.40 and 21,169,817.20

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Solution

The fourth proportional to 31,956,101.20, 47,957,771.40 and 21,169,817.20 is: 31,770,372.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,956,101.20 : 47,957,771.40 = 21,169,817.20 : x
  2. Step 2: Convert to fraction form
    31,956,101.20/47,957,771.40 = 21,169,817.20/x
  3. Step 3: Cross multiply
    31,956,101.20x = 47,957,771.40 × 21,169,817.20
  4. Step 4: Simplify right side
    31,956,101.20x = 1,015,257,253,857,388
  5. Step 5: Solve for x
    x = 1,015,257,253,857,388/31,956,101.20
  6. Step 6: Final answer
    x = 31,770,372.97

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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.