Home / 330,261,347.70-495,392,021.55-221,422,230.90

Finding the Fourth Proportional to 330,261,347.70, 495,392,021.55 and 221,422,230.90

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Solution

The fourth proportional to 330,261,347.70, 495,392,021.55 and 221,422,230.90 is: 332,133,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,261,347.70 : 495,392,021.55 = 221,422,230.90 : x
  2. Step 2: Convert to fraction form
    330,261,347.70/495,392,021.55 = 221,422,230.90/x
  3. Step 3: Cross multiply
    330,261,347.70x = 495,392,021.55 × 221,422,230.90
  4. Step 4: Simplify right side
    330,261,347.70x = 109,690,806,581,661,888
  5. Step 5: Solve for x
    x = 109,690,806,581,661,888/330,261,347.70
  6. Step 6: Final answer
    x = 332,133,346.35

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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.