Home / 12,800,315.17-19,200,491.23-5,227,280.92

Finding the Fourth Proportional to 12,800,315.17, 19,200,491.23 and 5,227,280.92

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Solution

The fourth proportional to 12,800,315.17, 19,200,491.23 and 5,227,280.92 is: 7,840,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800,315.17 : 19,200,491.23 = 5,227,280.92 : x
  2. Step 2: Convert to fraction form
    12,800,315.17/19,200,491.23 = 5,227,280.92/x
  3. Step 3: Cross multiply
    12,800,315.17x = 19,200,491.23 × 5,227,280.92
  4. Step 4: Simplify right side
    12,800,315.17x = 100,366,361,339,067.48
  5. Step 5: Solve for x
    x = 100,366,361,339,067.48/12,800,315.17
  6. Step 6: Final answer
    x = 7,840,928.92

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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.