Home / 305,473,015.92-421,553,853.72-166,245,446.64

Finding the Fourth Proportional to 305,473,015.92, 421,553,853.72 and 166,245,446.64

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Solution

The fourth proportional to 305,473,015.92, 421,553,853.72 and 166,245,446.64 is: 229,419,310.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,473,015.92 : 421,553,853.72 = 166,245,446.64 : x
  2. Step 2: Convert to fraction form
    305,473,015.92/421,553,853.72 = 166,245,446.64/x
  3. Step 3: Cross multiply
    305,473,015.92x = 421,553,853.72 × 166,245,446.64
  4. Step 4: Simplify right side
    305,473,015.92x = 70,081,408,694,494,624
  5. Step 5: Solve for x
    x = 70,081,408,694,494,624/305,473,015.92
  6. Step 6: Final answer
    x = 229,419,310.52

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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.