Home / 300,786,804.39-415,221,799.01-189,441,283.53

Finding the Fourth Proportional to 300,786,804.39, 415,221,799.01 and 189,441,283.53

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Solution

The fourth proportional to 300,786,804.39, 415,221,799.01 and 189,441,283.53 is: 261,514,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,786,804.39 : 415,221,799.01 = 189,441,283.53 : x
  2. Step 2: Convert to fraction form
    300,786,804.39/415,221,799.01 = 189,441,283.53/x
  3. Step 3: Cross multiply
    300,786,804.39x = 415,221,799.01 × 189,441,283.53
  4. Step 4: Simplify right side
    300,786,804.39x = 78,660,150,553,142,880
  5. Step 5: Solve for x
    x = 78,660,150,553,142,880/300,786,804.39
  6. Step 6: Final answer
    x = 261,514,632.31

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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.