Home / 31,504,388.40-47,162,104.20-18,718,311.60

Finding the Fourth Proportional to 31,504,388.40, 47,162,104.20 and 18,718,311.60

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Solution

The fourth proportional to 31,504,388.40, 47,162,104.20 and 18,718,311.60 is: 28,021,333.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504,388.40 : 47,162,104.20 = 18,718,311.60 : x
  2. Step 2: Convert to fraction form
    31,504,388.40/47,162,104.20 = 18,718,311.60/x
  3. Step 3: Cross multiply
    31,504,388.40x = 47,162,104.20 × 18,718,311.60
  4. Step 4: Simplify right side
    31,504,388.40x = 882,794,962,127,268.88
  5. Step 5: Solve for x
    x = 882,794,962,127,268.88/31,504,388.40
  6. Step 6: Final answer
    x = 28,021,333.12

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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.