Home / 213,753,960.40-320,378,998.20-159,838,286.80

Finding the Fourth Proportional to 213,753,960.40, 320,378,998.20 and 159,838,286.80

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Solution

The fourth proportional to 213,753,960.40, 320,378,998.20 and 159,838,286.80 is: 239,569,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,753,960.40 : 320,378,998.20 = 159,838,286.80 : x
  2. Step 2: Convert to fraction form
    213,753,960.40/320,378,998.20 = 159,838,286.80/x
  3. Step 3: Cross multiply
    213,753,960.40x = 320,378,998.20 × 159,838,286.80
  4. Step 4: Simplify right side
    213,753,960.40x = 51,208,830,198,988,288
  5. Step 5: Solve for x
    x = 51,208,830,198,988,288/213,753,960.40
  6. Step 6: Final answer
    x = 239,569,035.84

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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.