Home / 20,932,458.20-31,375,359.30-8,148,714.20

Finding the Fourth Proportional to 20,932,458.20, 31,375,359.30 and 8,148,714.20

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Solution

The fourth proportional to 20,932,458.20, 31,375,359.30 and 8,148,714.20 is: 12,213,990.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932,458.20 : 31,375,359.30 = 8,148,714.20 : x
  2. Step 2: Convert to fraction form
    20,932,458.20/31,375,359.30 = 8,148,714.20/x
  3. Step 3: Cross multiply
    20,932,458.20x = 31,375,359.30 × 8,148,714.20
  4. Step 4: Simplify right side
    20,932,458.20x = 255,668,835,858,012.06
  5. Step 5: Solve for x
    x = 255,668,835,858,012.06/20,932,458.20
  6. Step 6: Final answer
    x = 12,213,990.03

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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.