Home / 220,689,930.30-331,034,895.45-196,456,220.70

Finding the Fourth Proportional to 220,689,930.30, 331,034,895.45 and 196,456,220.70

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Solution

The fourth proportional to 220,689,930.30, 331,034,895.45 and 196,456,220.70 is: 294,684,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,689,930.30 : 331,034,895.45 = 196,456,220.70 : x
  2. Step 2: Convert to fraction form
    220,689,930.30/331,034,895.45 = 196,456,220.70/x
  3. Step 3: Cross multiply
    220,689,930.30x = 331,034,895.45 × 196,456,220.70
  4. Step 4: Simplify right side
    220,689,930.30x = 65,033,864,479,926,616
  5. Step 5: Solve for x
    x = 65,033,864,479,926,616/220,689,930.30
  6. Step 6: Final answer
    x = 294,684,331.05

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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.