Home / 18,535,660.80-27,803,491.20-15,386,380.80

Finding the Fourth Proportional to 18,535,660.80, 27,803,491.20 and 15,386,380.80

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Solution

The fourth proportional to 18,535,660.80, 27,803,491.20 and 15,386,380.80 is: 23,079,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535,660.80 : 27,803,491.20 = 15,386,380.80 : x
  2. Step 2: Convert to fraction form
    18,535,660.80/27,803,491.20 = 15,386,380.80/x
  3. Step 3: Cross multiply
    18,535,660.80x = 27,803,491.20 × 15,386,380.80
  4. Step 4: Simplify right side
    18,535,660.80x = 427,795,103,172,649
  5. Step 5: Solve for x
    x = 427,795,103,172,649/18,535,660.80
  6. Step 6: Final answer
    x = 23,079,571.20

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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.