Home / 221,392,134.48-331,800,151.49-90,081,381.72

Finding the Fourth Proportional to 221,392,134.48, 331,800,151.49 and 90,081,381.72

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Solution

The fourth proportional to 221,392,134.48, 331,800,151.49 and 90,081,381.72 is: 135,004,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,392,134.48 : 331,800,151.49 = 90,081,381.72 : x
  2. Step 2: Convert to fraction form
    221,392,134.48/331,800,151.49 = 90,081,381.72/x
  3. Step 3: Cross multiply
    221,392,134.48x = 331,800,151.49 × 90,081,381.72
  4. Step 4: Simplify right side
    221,392,134.48x = 29,889,016,101,124,516
  5. Step 5: Solve for x
    x = 29,889,016,101,124,516/221,392,134.48
  6. Step 6: Final answer
    x = 135,004,868.95

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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.