Home / 48,284,368.80-72,439,383.60-20,978,944.80

Finding the Fourth Proportional to 48,284,368.80, 72,439,383.60 and 20,978,944.80

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Solution

The fourth proportional to 48,284,368.80, 72,439,383.60 and 20,978,944.80 is: 31,473,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,284,368.80 : 72,439,383.60 = 20,978,944.80 : x
  2. Step 2: Convert to fraction form
    48,284,368.80/72,439,383.60 = 20,978,944.80/x
  3. Step 3: Cross multiply
    48,284,368.80x = 72,439,383.60 × 20,978,944.80
  4. Step 4: Simplify right side
    48,284,368.80x = 1,519,701,829,890,425.25
  5. Step 5: Solve for x
    x = 1,519,701,829,890,425.25/48,284,368.80
  6. Step 6: Final answer
    x = 31,473,991.85

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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.