Home / 774,511,897.52-1,068,795,236.40-422,080,321.16

Finding the Fourth Proportional to 774,511,897.52, 1,068,795,236.40 and 422,080,321.16

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Solution

The fourth proportional to 774,511,897.52, 1,068,795,236.40 and 422,080,321.16 is: 582,453,850.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,511,897.52 : 1,068,795,236.40 = 422,080,321.16 : x
  2. Step 2: Convert to fraction form
    774,511,897.52/1,068,795,236.40 = 422,080,321.16/x
  3. Step 3: Cross multiply
    774,511,897.52x = 1,068,795,236.40 × 422,080,321.16
  4. Step 4: Simplify right side
    774,511,897.52x = 451,117,436,633,990,144
  5. Step 5: Solve for x
    x = 451,117,436,633,990,144/774,511,897.52
  6. Step 6: Final answer
    x = 582,453,850.07

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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.