Home / 12,780,797.74-19,171,366.14-4,261,136.92

Finding the Fourth Proportional to 12,780,797.74, 19,171,366.14 and 4,261,136.92

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Solution

The fourth proportional to 12,780,797.74, 19,171,366.14 and 4,261,136.92 is: 6,391,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,797.74 : 19,171,366.14 = 4,261,136.92 : x
  2. Step 2: Convert to fraction form
    12,780,797.74/19,171,366.14 = 4,261,136.92/x
  3. Step 3: Cross multiply
    12,780,797.74x = 19,171,366.14 × 4,261,136.92
  4. Step 4: Simplify right side
    12,780,797.74x = 81,691,816,065,991.89
  5. Step 5: Solve for x
    x = 81,691,816,065,991.89/12,780,797.74
  6. Step 6: Final answer
    x = 6,391,761.90

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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.