Home / 621,378,922.56-932,220,136.88-206,854,942.56

Finding the Fourth Proportional to 621,378,922.56, 932,220,136.88 and 206,854,942.56

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Solution

The fourth proportional to 621,378,922.56, 932,220,136.88 and 206,854,942.56 is: 310,332,931.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,378,922.56 : 932,220,136.88 = 206,854,942.56 : x
  2. Step 2: Convert to fraction form
    621,378,922.56/932,220,136.88 = 206,854,942.56/x
  3. Step 3: Cross multiply
    621,378,922.56x = 932,220,136.88 × 206,854,942.56
  4. Step 4: Simplify right side
    621,378,922.56x = 192,834,342,867,587,744
  5. Step 5: Solve for x
    x = 192,834,342,867,587,744/621,378,922.56
  6. Step 6: Final answer
    x = 310,332,931.91

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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.