Home / 20,728,017.57-31,096,011.55-7,947,525.59

Finding the Fourth Proportional to 20,728,017.57, 31,096,011.55 and 7,947,525.59

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Solution

The fourth proportional to 20,728,017.57, 31,096,011.55 and 7,947,525.59 is: 11,922,816.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,017.57 : 31,096,011.55 = 7,947,525.59 : x
  2. Step 2: Convert to fraction form
    20,728,017.57/31,096,011.55 = 7,947,525.59/x
  3. Step 3: Cross multiply
    20,728,017.57x = 31,096,011.55 × 7,947,525.59
  4. Step 4: Simplify right side
    20,728,017.57x = 247,136,347,540,560.56
  5. Step 5: Solve for x
    x = 247,136,347,540,560.56/20,728,017.57
  6. Step 6: Final answer
    x = 11,922,816.39

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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.