Home / 220,729,870.34-331,083,799.77-82,545,318.50

Finding the Fourth Proportional to 220,729,870.34, 331,083,799.77 and 82,545,318.50

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Solution

The fourth proportional to 220,729,870.34, 331,083,799.77 and 82,545,318.50 is: 123,813,861.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,729,870.34 : 331,083,799.77 = 82,545,318.50 : x
  2. Step 2: Convert to fraction form
    220,729,870.34/331,083,799.77 = 82,545,318.50/x
  3. Step 3: Cross multiply
    220,729,870.34x = 331,083,799.77 × 82,545,318.50
  4. Step 4: Simplify right side
    220,729,870.34x = 27,329,417,700,549,456
  5. Step 5: Solve for x
    x = 27,329,417,700,549,456/220,729,870.34
  6. Step 6: Final answer
    x = 123,813,861.98

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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.