Home / 20,269,759.82-30,404,639.70-5,123,691.32

Finding the Fourth Proportional to 20,269,759.82, 30,404,639.70 and 5,123,691.32

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Solution

The fourth proportional to 20,269,759.82, 30,404,639.70 and 5,123,691.32 is: 7,685,536.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269,759.82 : 30,404,639.70 = 5,123,691.32 : x
  2. Step 2: Convert to fraction form
    20,269,759.82/30,404,639.70 = 5,123,691.32/x
  3. Step 3: Cross multiply
    20,269,759.82x = 30,404,639.70 × 5,123,691.32
  4. Step 4: Simplify right side
    20,269,759.82x = 155,783,988,518,617.41
  5. Step 5: Solve for x
    x = 155,783,988,518,617.41/20,269,759.82
  6. Step 6: Final answer
    x = 7,685,536.97

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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.