Home / 313,252,619.76-432,328,476.12-189,494,183.28

Finding the Fourth Proportional to 313,252,619.76, 432,328,476.12 and 189,494,183.28

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Solution

The fourth proportional to 313,252,619.76, 432,328,476.12 and 189,494,183.28 is: 261,526,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,252,619.76 : 432,328,476.12 = 189,494,183.28 : x
  2. Step 2: Convert to fraction form
    313,252,619.76/432,328,476.12 = 189,494,183.28/x
  3. Step 3: Cross multiply
    313,252,619.76x = 432,328,476.12 × 189,494,183.28
  4. Step 4: Simplify right side
    313,252,619.76x = 81,923,731,491,046,384
  5. Step 5: Solve for x
    x = 81,923,731,491,046,384/313,252,619.76
  6. Step 6: Final answer
    x = 261,526,085.73

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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.