Home / 667,040,245.31-920,515,625.78-369,701,683.77

Finding the Fourth Proportional to 667,040,245.31, 920,515,625.78 and 369,701,683.77

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Solution

The fourth proportional to 667,040,245.31, 920,515,625.78 and 369,701,683.77 is: 510,188,371.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,040,245.31 : 920,515,625.78 = 369,701,683.77 : x
  2. Step 2: Convert to fraction form
    667,040,245.31/920,515,625.78 = 369,701,683.77/x
  3. Step 3: Cross multiply
    667,040,245.31x = 920,515,625.78 × 369,701,683.77
  4. Step 4: Simplify right side
    667,040,245.31x = 340,316,176,785,612,672
  5. Step 5: Solve for x
    x = 340,316,176,785,612,672/667,040,245.31
  6. Step 6: Final answer
    x = 510,188,371.96

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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.