Home / 30,826,246.82-42,540,216.96-18,436,338.33

Finding the Fourth Proportional to 30,826,246.82, 42,540,216.96 and 18,436,338.33

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Solution

The fourth proportional to 30,826,246.82, 42,540,216.96 and 18,436,338.33 is: 25,442,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,826,246.82 : 42,540,216.96 = 18,436,338.33 : x
  2. Step 2: Convert to fraction form
    30,826,246.82/42,540,216.96 = 18,436,338.33/x
  3. Step 3: Cross multiply
    30,826,246.82x = 42,540,216.96 × 18,436,338.33
  4. Step 4: Simplify right side
    30,826,246.82x = 784,285,832,346,638.38
  5. Step 5: Solve for x
    x = 784,285,832,346,638.38/30,826,246.82
  6. Step 6: Final answer
    x = 25,442,144.71

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1.5x scale

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.