Home / 48,284,564.30-72,439,676.85-20,979,140.30

Finding the Fourth Proportional to 48,284,564.30, 72,439,676.85 and 20,979,140.30

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Solution

The fourth proportional to 48,284,564.30, 72,439,676.85 and 20,979,140.30 is: 31,474,285.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,284,564.30 : 72,439,676.85 = 20,979,140.30 : x
  2. Step 2: Convert to fraction form
    48,284,564.30/72,439,676.85 = 20,979,140.30/x
  3. Step 3: Cross multiply
    48,284,564.30x = 72,439,676.85 × 20,979,140.30
  4. Step 4: Simplify right side
    48,284,564.30x = 1,519,722,143,922,812
  5. Step 5: Solve for x
    x = 1,519,722,143,922,812/48,284,564.30
  6. Step 6: Final answer
    x = 31,474,285.13

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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.