Home / 31,654,415.20-47,481,622.80-20,694,920.80

Finding the Fourth Proportional to 31,654,415.20, 47,481,622.80 and 20,694,920.80

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Solution

The fourth proportional to 31,654,415.20, 47,481,622.80 and 20,694,920.80 is: 31,042,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,654,415.20 : 47,481,622.80 = 20,694,920.80 : x
  2. Step 2: Convert to fraction form
    31,654,415.20/47,481,622.80 = 20,694,920.80/x
  3. Step 3: Cross multiply
    31,654,415.20x = 47,481,622.80 × 20,694,920.80
  4. Step 4: Simplify right side
    31,654,415.20x = 982,628,423,301,474.25
  5. Step 5: Solve for x
    x = 982,628,423,301,474.25/31,654,415.20
  6. Step 6: Final answer
    x = 31,042,381.20

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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.