Home / 1,131,823,714.62-1,561,900,727.82-636,785,242.14

Finding the Fourth Proportional to 1,131,823,714.62, 1,561,900,727.82 and 636,785,242.14

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Solution

The fourth proportional to 1,131,823,714.62, 1,561,900,727.82 and 636,785,242.14 is: 878,754,633.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,823,714.62 : 1,561,900,727.82 = 636,785,242.14 : x
  2. Step 2: Convert to fraction form
    1,131,823,714.62/1,561,900,727.82 = 636,785,242.14/x
  3. Step 3: Cross multiply
    1,131,823,714.62x = 1,561,900,727.82 × 636,785,242.14
  4. Step 4: Simplify right side
    1,131,823,714.62x = 994,595,333,163,500,928
  5. Step 5: Solve for x
    x = 994,595,333,163,500,928/1,131,823,714.62
  6. Step 6: Final answer
    x = 878,754,633.18

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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.