Home / 693,376,183.78-956,919,668.25-380,170,932.21

Finding the Fourth Proportional to 693,376,183.78, 956,919,668.25 and 380,170,932.21

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Solution

The fourth proportional to 693,376,183.78, 956,919,668.25 and 380,170,932.21 is: 524,669,076.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,376,183.78 : 956,919,668.25 = 380,170,932.21 : x
  2. Step 2: Convert to fraction form
    693,376,183.78/956,919,668.25 = 380,170,932.21/x
  3. Step 3: Cross multiply
    693,376,183.78x = 956,919,668.25 × 380,170,932.21
  4. Step 4: Simplify right side
    693,376,183.78x = 363,793,042,328,686,400
  5. Step 5: Solve for x
    x = 363,793,042,328,686,400/693,376,183.78
  6. Step 6: Final answer
    x = 524,669,076.96

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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.