Home / 221,392,145.85-331,800,169.01-90,081,392.64

Finding the Fourth Proportional to 221,392,145.85, 331,800,169.01 and 90,081,392.64

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Solution

The fourth proportional to 221,392,145.85, 331,800,169.01 and 90,081,392.64 is: 135,004,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,392,145.85 : 331,800,169.01 = 90,081,392.64 : x
  2. Step 2: Convert to fraction form
    221,392,145.85/331,800,169.01 = 90,081,392.64/x
  3. Step 3: Cross multiply
    221,392,145.85x = 331,800,169.01 × 90,081,392.64
  4. Step 4: Simplify right side
    221,392,145.85x = 29,889,021,302,157,764
  5. Step 5: Solve for x
    x = 29,889,021,302,157,764/221,392,145.85
  6. Step 6: Final answer
    x = 135,004,885.50

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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.