Home / 48,284,540.80-72,439,641.60-20,979,116.80

Finding the Fourth Proportional to 48,284,540.80, 72,439,641.60 and 20,979,116.80

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Solution

The fourth proportional to 48,284,540.80, 72,439,641.60 and 20,979,116.80 is: 31,474,249.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,284,540.80 : 72,439,641.60 = 20,979,116.80 : x
  2. Step 2: Convert to fraction form
    48,284,540.80/72,439,641.60 = 20,979,116.80/x
  3. Step 3: Cross multiply
    48,284,540.80x = 72,439,641.60 × 20,979,116.80
  4. Step 4: Simplify right side
    48,284,540.80x = 1,519,719,702,076,538.75
  5. Step 5: Solve for x
    x = 1,519,719,702,076,538.75/48,284,540.80
  6. Step 6: Final answer
    x = 31,474,249.87

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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.