Home / 18,589,432.20-25,656,188.94-13,379,667.72

Finding the Fourth Proportional to 18,589,432.20, 25,656,188.94 and 13,379,667.72

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Solution

The fourth proportional to 18,589,432.20, 25,656,188.94 and 13,379,667.72 is: 18,465,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589,432.20 : 25,656,188.94 = 13,379,667.72 : x
  2. Step 2: Convert to fraction form
    18,589,432.20/25,656,188.94 = 13,379,667.72/x
  3. Step 3: Cross multiply
    18,589,432.20x = 25,656,188.94 × 13,379,667.72
  4. Step 4: Simplify right side
    18,589,432.20x = 343,271,282,978,739.06
  5. Step 5: Solve for x
    x = 343,271,282,978,739.06/18,589,432.20
  6. Step 6: Final answer
    x = 18,465,936.95

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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.