Home / 18,689,042.70-28,028,034.45-7,322,949.90

Finding the Fourth Proportional to 18,689,042.70, 28,028,034.45 and 7,322,949.90

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Solution

The fourth proportional to 18,689,042.70, 28,028,034.45 and 7,322,949.90 is: 10,982,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,042.70 : 28,028,034.45 = 7,322,949.90 : x
  2. Step 2: Convert to fraction form
    18,689,042.70/28,028,034.45 = 7,322,949.90/x
  3. Step 3: Cross multiply
    18,689,042.70x = 28,028,034.45 × 7,322,949.90
  4. Step 4: Simplify right side
    18,689,042.70x = 205,247,892,072,824.06
  5. Step 5: Solve for x
    x = 205,247,892,072,824.06/18,689,042.70
  6. Step 6: Final answer
    x = 10,982,258.18

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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.