Home / 7,128,035.20-10,694,500.80-2,080,086.40

Finding the Fourth Proportional to 7,128,035.20, 10,694,500.80 and 2,080,086.40

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Solution

The fourth proportional to 7,128,035.20, 10,694,500.80 and 2,080,086.40 is: 3,120,843.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,035.20 : 10,694,500.80 = 2,080,086.40 : x
  2. Step 2: Convert to fraction form
    7,128,035.20/10,694,500.80 = 2,080,086.40/x
  3. Step 3: Cross multiply
    7,128,035.20x = 10,694,500.80 × 2,080,086.40
  4. Step 4: Simplify right side
    7,128,035.20x = 22,245,485,668,869.12
  5. Step 5: Solve for x
    x = 22,245,485,668,869.12/7,128,035.20
  6. Step 6: Final answer
    x = 3,120,843.97

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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.