Home / 776,820,782.30-1,165,231,836.84-216,560,400.26

Finding the Fourth Proportional to 776,820,782.30, 1,165,231,836.84 and 216,560,400.26

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Solution

The fourth proportional to 776,820,782.30, 1,165,231,836.84 and 216,560,400.26 is: 324,840,785.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,820,782.30 : 1,165,231,836.84 = 216,560,400.26 : x
  2. Step 2: Convert to fraction form
    776,820,782.30/1,165,231,836.84 = 216,560,400.26/x
  3. Step 3: Cross multiply
    776,820,782.30x = 1,165,231,836.84 × 216,560,400.26
  4. Step 4: Simplify right side
    776,820,782.30x = 252,343,072,981,765,376
  5. Step 5: Solve for x
    x = 252,343,072,981,765,376/776,820,782.30
  6. Step 6: Final answer
    x = 324,840,785.33

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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.