Home / 20,311,299.32-30,466,981.74-7,190,480.12

Finding the Fourth Proportional to 20,311,299.32, 30,466,981.74 and 7,190,480.12

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Solution

The fourth proportional to 20,311,299.32, 30,466,981.74 and 7,190,480.12 is: 10,785,731.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,311,299.32 : 30,466,981.74 = 7,190,480.12 : x
  2. Step 2: Convert to fraction form
    20,311,299.32/30,466,981.74 = 7,190,480.12/x
  3. Step 3: Cross multiply
    20,311,299.32x = 30,466,981.74 × 7,190,480.12
  4. Step 4: Simplify right side
    20,311,299.32x = 219,072,226,517,873
  5. Step 5: Solve for x
    x = 219,072,226,517,873/20,311,299.32
  6. Step 6: Final answer
    x = 10,785,731.78

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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.