Home / 1,219,110,493.62-1,682,512,046.28-683,406,846.78

Finding the Fourth Proportional to 1,219,110,493.62, 1,682,512,046.28 and 683,406,846.78

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Solution

The fourth proportional to 1,219,110,493.62, 1,682,512,046.28 and 683,406,846.78 is: 943,179,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,110,493.62 : 1,682,512,046.28 = 683,406,846.78 : x
  2. Step 2: Convert to fraction form
    1,219,110,493.62/1,682,512,046.28 = 683,406,846.78/x
  3. Step 3: Cross multiply
    1,219,110,493.62x = 1,682,512,046.28 × 683,406,846.78
  4. Step 4: Simplify right side
    1,219,110,493.62x = 1,149,840,252,217,580,160
  5. Step 5: Solve for x
    x = 1,149,840,252,217,580,160/1,219,110,493.62
  6. Step 6: Final answer
    x = 943,179,685.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.