Home / 12,855,144.69-19,269,160.07-4,216,990.41

Finding the Fourth Proportional to 12,855,144.69, 19,269,160.07 and 4,216,990.41

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Solution

The fourth proportional to 12,855,144.69, 19,269,160.07 and 4,216,990.41 is: 6,321,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855,144.69 : 19,269,160.07 = 4,216,990.41 : x
  2. Step 2: Convert to fraction form
    12,855,144.69/19,269,160.07 = 4,216,990.41/x
  3. Step 3: Cross multiply
    12,855,144.69x = 19,269,160.07 × 4,216,990.41
  4. Step 4: Simplify right side
    12,855,144.69x = 81,257,863,202,859.98
  5. Step 5: Solve for x
    x = 81,257,863,202,859.98/12,855,144.69
  6. Step 6: Final answer
    x = 6,321,038.40

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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.