Home / 774,511,812.21-1,068,795,119.23-422,080,235.90

Finding the Fourth Proportional to 774,511,812.21, 1,068,795,119.23 and 422,080,235.90

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Solution

The fourth proportional to 774,511,812.21, 1,068,795,119.23 and 422,080,235.90 is: 582,453,732.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,511,812.21 : 1,068,795,119.23 = 422,080,235.90 : x
  2. Step 2: Convert to fraction form
    774,511,812.21/1,068,795,119.23 = 422,080,235.90/x
  3. Step 3: Cross multiply
    774,511,812.21x = 1,068,795,119.23 × 422,080,235.90
  4. Step 4: Simplify right side
    774,511,812.21x = 451,117,296,053,367,040
  5. Step 5: Solve for x
    x = 451,117,296,053,367,040/774,511,812.21
  6. Step 6: Final answer
    x = 582,453,732.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.