Home / 757,795,786.30-1,136,693,679.45-431,278,435.90

Finding the Fourth Proportional to 757,795,786.30, 1,136,693,679.45 and 431,278,435.90

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Solution

The fourth proportional to 757,795,786.30, 1,136,693,679.45 and 431,278,435.90 is: 646,917,653.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,795,786.30 : 1,136,693,679.45 = 431,278,435.90 : x
  2. Step 2: Convert to fraction form
    757,795,786.30/1,136,693,679.45 = 431,278,435.90/x
  3. Step 3: Cross multiply
    757,795,786.30x = 1,136,693,679.45 × 431,278,435.90
  4. Step 4: Simplify right side
    757,795,786.30x = 490,231,472,170,611,968
  5. Step 5: Solve for x
    x = 490,231,472,170,611,968/757,795,786.30
  6. Step 6: Final answer
    x = 646,917,653.85

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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.