Home / 683,640,535.88-1,024,227,858.54-420,867,761.96

Finding the Fourth Proportional to 683,640,535.88, 1,024,227,858.54 and 420,867,761.96

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Solution

The fourth proportional to 683,640,535.88, 1,024,227,858.54 and 420,867,761.96 is: 630,542,608.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,640,535.88 : 1,024,227,858.54 = 420,867,761.96 : x
  2. Step 2: Convert to fraction form
    683,640,535.88/1,024,227,858.54 = 420,867,761.96/x
  3. Step 3: Cross multiply
    683,640,535.88x = 1,024,227,858.54 × 420,867,761.96
  4. Step 4: Simplify right side
    683,640,535.88x = 431,064,486,560,813,248
  5. Step 5: Solve for x
    x = 431,064,486,560,813,248/683,640,535.88
  6. Step 6: Final answer
    x = 630,542,608.19

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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.