Home / 20,439,896.28-30,644,710.32-12,350,977.92

Finding the Fourth Proportional to 20,439,896.28, 30,644,710.32 and 12,350,977.92

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Solution

The fourth proportional to 20,439,896.28, 30,644,710.32 and 12,350,977.92 is: 18,517,321.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439,896.28 : 30,644,710.32 = 12,350,977.92 : x
  2. Step 2: Convert to fraction form
    20,439,896.28/30,644,710.32 = 12,350,977.92/x
  3. Step 3: Cross multiply
    20,439,896.28x = 30,644,710.32 × 12,350,977.92
  4. Step 4: Simplify right side
    20,439,896.28x = 378,492,140,527,116.12
  5. Step 5: Solve for x
    x = 378,492,140,527,116.12/20,439,896.28
  6. Step 6: Final answer
    x = 18,517,321.97

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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.