Home / 300,786,796.14-415,221,787.62-189,441,275.28

Finding the Fourth Proportional to 300,786,796.14, 415,221,787.62 and 189,441,275.28

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Solution

The fourth proportional to 300,786,796.14, 415,221,787.62 and 189,441,275.28 is: 261,514,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,786,796.14 : 415,221,787.62 = 189,441,275.28 : x
  2. Step 2: Convert to fraction form
    300,786,796.14/415,221,787.62 = 189,441,275.28/x
  3. Step 3: Cross multiply
    300,786,796.14x = 415,221,787.62 × 189,441,275.28
  4. Step 4: Simplify right side
    300,786,796.14x = 78,660,144,970,774,112
  5. Step 5: Solve for x
    x = 78,660,144,970,774,112/300,786,796.14
  6. Step 6: Final answer
    x = 261,514,620.92

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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.