Home / 667,040,279.92-920,515,673.64-369,701,718.52

Finding the Fourth Proportional to 667,040,279.92, 920,515,673.64 and 369,701,718.52

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Solution

The fourth proportional to 667,040,279.92, 920,515,673.64 and 369,701,718.52 is: 510,188,419.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,040,279.92 : 920,515,673.64 = 369,701,718.52 : x
  2. Step 2: Convert to fraction form
    667,040,279.92/920,515,673.64 = 369,701,718.52/x
  3. Step 3: Cross multiply
    667,040,279.92x = 920,515,673.64 × 369,701,718.52
  4. Step 4: Simplify right side
    667,040,279.92x = 340,316,226,469,303,424
  5. Step 5: Solve for x
    x = 340,316,226,469,303,424/667,040,279.92
  6. Step 6: Final answer
    x = 510,188,419.97

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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.