Home / 172,517,006.12-258,684,707.50-117,945,198.20

Finding the Fourth Proportional to 172,517,006.12, 258,684,707.50 and 117,945,198.20

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Solution

The fourth proportional to 172,517,006.12, 258,684,707.50 and 117,945,198.20 is: 176,855,718.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,517,006.12 : 258,684,707.50 = 117,945,198.20 : x
  2. Step 2: Convert to fraction form
    172,517,006.12/258,684,707.50 = 117,945,198.20/x
  3. Step 3: Cross multiply
    172,517,006.12x = 258,684,707.50 × 117,945,198.20
  4. Step 4: Simplify right side
    172,517,006.12x = 30,510,619,096,427,552
  5. Step 5: Solve for x
    x = 30,510,619,096,427,552/172,517,006.12
  6. Step 6: Final answer
    x = 176,855,718.65

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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.