Home / 7,802,080.20-11,703,120.30-7,690,105.80

Finding the Fourth Proportional to 7,802,080.20, 11,703,120.30 and 7,690,105.80

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Solution

The fourth proportional to 7,802,080.20, 11,703,120.30 and 7,690,105.80 is: 11,535,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,802,080.20 : 11,703,120.30 = 7,690,105.80 : x
  2. Step 2: Convert to fraction form
    7,802,080.20/11,703,120.30 = 7,690,105.80/x
  3. Step 3: Cross multiply
    7,802,080.20x = 11,703,120.30 × 7,690,105.80
  4. Step 4: Simplify right side
    7,802,080.20x = 89,998,233,297,127.75
  5. Step 5: Solve for x
    x = 89,998,233,297,127.75/7,802,080.20
  6. Step 6: Final answer
    x = 11,535,158.70

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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.