Home / 320,206,863.78-441,885,850.02-173,529,147.78

Finding the Fourth Proportional to 320,206,863.78, 441,885,850.02 and 173,529,147.78

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Solution

The fourth proportional to 320,206,863.78, 441,885,850.02 and 173,529,147.78 is: 239,470,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,206,863.78 : 441,885,850.02 = 173,529,147.78 : x
  2. Step 2: Convert to fraction form
    320,206,863.78/441,885,850.02 = 173,529,147.78/x
  3. Step 3: Cross multiply
    320,206,863.78x = 441,885,850.02 × 173,529,147.78
  4. Step 4: Simplify right side
    320,206,863.78x = 76,680,074,970,011,488
  5. Step 5: Solve for x
    x = 76,680,074,970,011,488/320,206,863.78
  6. Step 6: Final answer
    x = 239,470,428.79

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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.