Home / 206,165,111.85-309,471,747.78-83,427,930.81

Finding the Fourth Proportional to 206,165,111.85, 309,471,747.78 and 83,427,930.81

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Solution

The fourth proportional to 206,165,111.85, 309,471,747.78 and 83,427,930.81 is: 125,232,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,165,111.85 : 309,471,747.78 = 83,427,930.81 : x
  2. Step 2: Convert to fraction form
    206,165,111.85/309,471,747.78 = 83,427,930.81/x
  3. Step 3: Cross multiply
    206,165,111.85x = 309,471,747.78 × 83,427,930.81
  4. Step 4: Simplify right side
    206,165,111.85x = 25,818,587,561,439,608
  5. Step 5: Solve for x
    x = 25,818,587,561,439,608/206,165,111.85
  6. Step 6: Final answer
    x = 125,232,573.69

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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.