Home / 31,558,887.20-47,338,330.80-20,809,344.80

Finding the Fourth Proportional to 31,558,887.20, 47,338,330.80 and 20,809,344.80

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Solution

The fourth proportional to 31,558,887.20, 47,338,330.80 and 20,809,344.80 is: 31,214,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,558,887.20 : 47,338,330.80 = 20,809,344.80 : x
  2. Step 2: Convert to fraction form
    31,558,887.20/47,338,330.80 = 20,809,344.80/x
  3. Step 3: Cross multiply
    31,558,887.20x = 47,338,330.80 × 20,809,344.80
  4. Step 4: Simplify right side
    31,558,887.20x = 985,079,647,873,659.88
  5. Step 5: Solve for x
    x = 985,079,647,873,659.88/31,558,887.20
  6. Step 6: Final answer
    x = 31,214,017.20

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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.