Home / 31,939,188.80-47,891,287.20-15,729,494.72

Finding the Fourth Proportional to 31,939,188.80, 47,891,287.20 and 15,729,494.72

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Solution

The fourth proportional to 31,939,188.80, 47,891,287.20 and 15,729,494.72 is: 23,585,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,939,188.80 : 47,891,287.20 = 15,729,494.72 : x
  2. Step 2: Convert to fraction form
    31,939,188.80/47,891,287.20 = 15,729,494.72/x
  3. Step 3: Cross multiply
    31,939,188.80x = 47,891,287.20 × 15,729,494.72
  4. Step 4: Simplify right side
    31,939,188.80x = 753,305,749,146,403.62
  5. Step 5: Solve for x
    x = 753,305,749,146,403.62/31,939,188.80
  6. Step 6: Final answer
    x = 23,585,625.60

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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.