Home / 391,631,213.58-541,226,182.22-320,955,373.14

Finding the Fourth Proportional to 391,631,213.58, 541,226,182.22 and 320,955,373.14

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Solution

The fourth proportional to 391,631,213.58, 541,226,182.22 and 320,955,373.14 is: 443,553,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,631,213.58 : 541,226,182.22 = 320,955,373.14 : x
  2. Step 2: Convert to fraction form
    391,631,213.58/541,226,182.22 = 320,955,373.14/x
  3. Step 3: Cross multiply
    391,631,213.58x = 541,226,182.22 × 320,955,373.14
  4. Step 4: Simplify right side
    391,631,213.58x = 173,709,451,267,557,728
  5. Step 5: Solve for x
    x = 173,709,451,267,557,728/391,631,213.58
  6. Step 6: Final answer
    x = 443,553,642.42

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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.