Home / 39,158,266.96-54,039,371.12-21,517,028.16

Finding the Fourth Proportional to 39,158,266.96, 54,039,371.12 and 21,517,028.16

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Solution

The fourth proportional to 39,158,266.96, 54,039,371.12 and 21,517,028.16 is: 29,694,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,158,266.96 : 54,039,371.12 = 21,517,028.16 : x
  2. Step 2: Convert to fraction form
    39,158,266.96/54,039,371.12 = 21,517,028.16/x
  3. Step 3: Cross multiply
    39,158,266.96x = 54,039,371.12 × 21,517,028.16
  4. Step 4: Simplify right side
    39,158,266.96x = 1,162,766,670,137,730.75
  5. Step 5: Solve for x
    x = 1,162,766,670,137,730.75/39,158,266.96
  6. Step 6: Final answer
    x = 29,694,027.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.