Home / 782,191,514,195.80-1,173,420,939,996.40-322,474,879,767.22

Finding the Fourth Proportional to 782,191,514,195.80, 1,173,420,939,996.40 and 322,474,879,767.22

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Solution

The fourth proportional to 782,191,514,195.80, 1,173,420,939,996.40 and 322,474,879,767.22 is: 483,767,427,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,191,514,195.80 : 1,173,420,939,996.40 = 322,474,879,767.22 : x
  2. Step 2: Convert to fraction form
    782,191,514,195.80/1,173,420,939,996.40 = 322,474,879,767.22/x
  3. Step 3: Cross multiply
    782,191,514,195.80x = 1,173,420,939,996.40 × 322,474,879,767.22
  4. Step 4: Simplify right side
    782,191,514,195.80x = 378,398,776,541,677,325,647,872
  5. Step 5: Solve for x
    x = 378,398,776,541,677,325,647,872/782,191,514,195.80
  6. Step 6: Final answer
    x = 483,767,427,380.91

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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.