Home / 48,284,524.80-72,439,617.60-20,979,100.80

Finding the Fourth Proportional to 48,284,524.80, 72,439,617.60 and 20,979,100.80

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Solution

The fourth proportional to 48,284,524.80, 72,439,617.60 and 20,979,100.80 is: 31,474,225.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,284,524.80 : 72,439,617.60 = 20,979,100.80 : x
  2. Step 2: Convert to fraction form
    48,284,524.80/72,439,617.60 = 20,979,100.80/x
  3. Step 3: Cross multiply
    48,284,524.80x = 72,439,617.60 × 20,979,100.80
  4. Step 4: Simplify right side
    48,284,524.80x = 1,519,718,039,543,854
  5. Step 5: Solve for x
    x = 1,519,718,039,543,854/48,284,524.80
  6. Step 6: Final answer
    x = 31,474,225.87

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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.