Home / 173,198,380.68-259,882,929.63-81,088,355.88

Finding the Fourth Proportional to 173,198,380.68, 259,882,929.63 and 81,088,355.88

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Solution

The fourth proportional to 173,198,380.68, 259,882,929.63 and 81,088,355.88 is: 121,672,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,198,380.68 : 259,882,929.63 = 81,088,355.88 : x
  2. Step 2: Convert to fraction form
    173,198,380.68/259,882,929.63 = 81,088,355.88/x
  3. Step 3: Cross multiply
    173,198,380.68x = 259,882,929.63 × 81,088,355.88
  4. Step 4: Simplify right side
    173,198,380.68x = 21,073,479,484,974,436
  5. Step 5: Solve for x
    x = 21,073,479,484,974,436/173,198,380.68
  6. Step 6: Final answer
    x = 121,672,497.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.