Home / 215,686,974.70-323,530,462.05-164,668,638.70

Finding the Fourth Proportional to 215,686,974.70, 323,530,462.05 and 164,668,638.70

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Solution

The fourth proportional to 215,686,974.70, 323,530,462.05 and 164,668,638.70 is: 247,002,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,686,974.70 : 323,530,462.05 = 164,668,638.70 : x
  2. Step 2: Convert to fraction form
    215,686,974.70/323,530,462.05 = 164,668,638.70/x
  3. Step 3: Cross multiply
    215,686,974.70x = 323,530,462.05 × 164,668,638.70
  4. Step 4: Simplify right side
    215,686,974.70x = 53,275,320,763,755,512
  5. Step 5: Solve for x
    x = 53,275,320,763,755,512/215,686,974.70
  6. Step 6: Final answer
    x = 247,002,958.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.