Home / 1,296,091,824.44-1,788,414,311.09-787,189,714.64

Finding the Fourth Proportional to 1,296,091,824.44, 1,788,414,311.09 and 787,189,714.64

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Solution

The fourth proportional to 1,296,091,824.44, 1,788,414,311.09 and 787,189,714.64 is: 1,086,204,946.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,091,824.44 : 1,788,414,311.09 = 787,189,714.64 : x
  2. Step 2: Convert to fraction form
    1,296,091,824.44/1,788,414,311.09 = 787,189,714.64/x
  3. Step 3: Cross multiply
    1,296,091,824.44x = 1,788,414,311.09 × 787,189,714.64
  4. Step 4: Simplify right side
    1,296,091,824.44x = 1,407,821,351,205,029,120
  5. Step 5: Solve for x
    x = 1,407,821,351,205,029,120/1,296,091,824.44
  6. Step 6: Final answer
    x = 1,086,204,946.79

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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.