Home / 391,631,212.58-541,226,180.84-320,955,372.14

Finding the Fourth Proportional to 391,631,212.58, 541,226,180.84 and 320,955,372.14

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Solution

The fourth proportional to 391,631,212.58, 541,226,180.84 and 320,955,372.14 is: 443,553,641.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,631,212.58 : 541,226,180.84 = 320,955,372.14 : x
  2. Step 2: Convert to fraction form
    391,631,212.58/541,226,180.84 = 320,955,372.14/x
  3. Step 3: Cross multiply
    391,631,212.58x = 541,226,180.84 × 320,955,372.14
  4. Step 4: Simplify right side
    391,631,212.58x = 173,709,450,279,102,240
  5. Step 5: Solve for x
    x = 173,709,450,279,102,240/391,631,212.58
  6. Step 6: Final answer
    x = 443,553,641.03

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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.