Home / 345,970,016.78-477,432,240.39-189,333,982.17

Finding the Fourth Proportional to 345,970,016.78, 477,432,240.39 and 189,333,982.17

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Solution

The fourth proportional to 345,970,016.78, 477,432,240.39 and 189,333,982.17 is: 261,277,402.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,970,016.78 : 477,432,240.39 = 189,333,982.17 : x
  2. Step 2: Convert to fraction form
    345,970,016.78/477,432,240.39 = 189,333,982.17/x
  3. Step 3: Cross multiply
    345,970,016.78x = 477,432,240.39 × 189,333,982.17
  4. Step 4: Simplify right side
    345,970,016.78x = 90,394,147,289,383,408
  5. Step 5: Solve for x
    x = 90,394,147,289,383,408/345,970,016.78
  6. Step 6: Final answer
    x = 261,277,402.39

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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.