Home / 7,128,234.20-10,692,760.90-2,080,323.80

Finding the Fourth Proportional to 7,128,234.20, 10,692,760.90 and 2,080,323.80

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Solution

The fourth proportional to 7,128,234.20, 10,692,760.90 and 2,080,323.80 is: 3,120,605.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,234.20 : 10,692,760.90 = 2,080,323.80 : x
  2. Step 2: Convert to fraction form
    7,128,234.20/10,692,760.90 = 2,080,323.80/x
  3. Step 3: Cross multiply
    7,128,234.20x = 10,692,760.90 × 2,080,323.80
  4. Step 4: Simplify right side
    7,128,234.20x = 22,244,404,987,979.42
  5. Step 5: Solve for x
    x = 22,244,404,987,979.42/7,128,234.20
  6. Step 6: Final answer
    x = 3,120,605.24

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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.