Home / 31,540,363.20-47,310,544.80-20,790,820.80

Finding the Fourth Proportional to 31,540,363.20, 47,310,544.80 and 20,790,820.80

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Solution

The fourth proportional to 31,540,363.20, 47,310,544.80 and 20,790,820.80 is: 31,186,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,540,363.20 : 47,310,544.80 = 20,790,820.80 : x
  2. Step 2: Convert to fraction form
    31,540,363.20/47,310,544.80 = 20,790,820.80/x
  3. Step 3: Cross multiply
    31,540,363.20x = 47,310,544.80 × 20,790,820.80
  4. Step 4: Simplify right side
    31,540,363.20x = 983,625,058,887,171.88
  5. Step 5: Solve for x
    x = 983,625,058,887,171.88/31,540,363.20
  6. Step 6: Final answer
    x = 31,186,231.20

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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.