Home / 391,631,217.08-541,226,187.05-320,955,376.64

Finding the Fourth Proportional to 391,631,217.08, 541,226,187.05 and 320,955,376.64

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Solution

The fourth proportional to 391,631,217.08, 541,226,187.05 and 320,955,376.64 is: 443,553,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,631,217.08 : 541,226,187.05 = 320,955,376.64 : x
  2. Step 2: Convert to fraction form
    391,631,217.08/541,226,187.05 = 320,955,376.64/x
  3. Step 3: Cross multiply
    391,631,217.08x = 541,226,187.05 × 320,955,376.64
  4. Step 4: Simplify right side
    391,631,217.08x = 173,709,454,707,752,928
  5. Step 5: Solve for x
    x = 173,709,454,707,752,928/391,631,217.08
  6. Step 6: Final answer
    x = 443,553,647.24

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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.