Home / 47,942,375.23-71,964,738.60-20,662,130.89

Finding the Fourth Proportional to 47,942,375.23, 71,964,738.60 and 20,662,130.89

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Solution

The fourth proportional to 47,942,375.23, 71,964,738.60 and 20,662,130.89 is: 31,015,251.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,942,375.23 : 71,964,738.60 = 20,662,130.89 : x
  2. Step 2: Convert to fraction form
    47,942,375.23/71,964,738.60 = 20,662,130.89/x
  3. Step 3: Cross multiply
    47,942,375.23x = 71,964,738.60 × 20,662,130.89
  4. Step 4: Simplify right side
    47,942,375.23x = 1,486,944,848,417,835.25
  5. Step 5: Solve for x
    x = 1,486,944,848,417,835.25/47,942,375.23
  6. Step 6: Final answer
    x = 31,015,251.98

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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.