Home / 321,008,428.29-442,991,695.05-195,560,619.61

Finding the Fourth Proportional to 321,008,428.29, 442,991,695.05 and 195,560,619.61

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Solution

The fourth proportional to 321,008,428.29, 442,991,695.05 and 195,560,619.61 is: 269,873,694.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,008,428.29 : 442,991,695.05 = 195,560,619.61 : x
  2. Step 2: Convert to fraction form
    321,008,428.29/442,991,695.05 = 195,560,619.61/x
  3. Step 3: Cross multiply
    321,008,428.29x = 442,991,695.05 × 195,560,619.61
  4. Step 4: Simplify right side
    321,008,428.29x = 86,631,730,366,062,176
  5. Step 5: Solve for x
    x = 86,631,730,366,062,176/321,008,428.29
  6. Step 6: Final answer
    x = 269,873,694.06

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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.