Home / 221,392,821.27-331,801,182.95-90,082,069.59

Finding the Fourth Proportional to 221,392,821.27, 331,801,182.95 and 90,082,069.59

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Solution

The fourth proportional to 221,392,821.27, 331,801,182.95 and 90,082,069.59 is: 135,005,900.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,392,821.27 : 331,801,182.95 = 90,082,069.59 : x
  2. Step 2: Convert to fraction form
    221,392,821.27/331,801,182.95 = 90,082,069.59/x
  3. Step 3: Cross multiply
    221,392,821.27x = 331,801,182.95 × 90,082,069.59
  4. Step 4: Simplify right side
    221,392,821.27x = 29,889,337,252,095,812
  5. Step 5: Solve for x
    x = 29,889,337,252,095,812/221,392,821.27
  6. Step 6: Final answer
    x = 135,005,900.74

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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.