Home / 216,206,383.40-324,826,953.86-138,635,266.69

Finding the Fourth Proportional to 216,206,383.40, 324,826,953.86 and 138,635,266.69

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Solution

The fourth proportional to 216,206,383.40, 324,826,953.86 and 138,635,266.69 is: 208,284,652.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,206,383.40 : 324,826,953.86 = 138,635,266.69 : x
  2. Step 2: Convert to fraction form
    216,206,383.40/324,826,953.86 = 138,635,266.69/x
  3. Step 3: Cross multiply
    216,206,383.40x = 324,826,953.86 × 138,635,266.69
  4. Step 4: Simplify right side
    216,206,383.40x = 45,032,471,375,999,680
  5. Step 5: Solve for x
    x = 45,032,471,375,999,680/216,206,383.40
  6. Step 6: Final answer
    x = 208,284,652.23

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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.