Home / 18,927,018.28-28,449,795.45-12,491,454.34

Finding the Fourth Proportional to 18,927,018.28, 28,449,795.45 and 12,491,454.34

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Solution

The fourth proportional to 18,927,018.28, 28,449,795.45 and 12,491,454.34 is: 18,776,297.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927,018.28 : 28,449,795.45 = 12,491,454.34 : x
  2. Step 2: Convert to fraction form
    18,927,018.28/28,449,795.45 = 12,491,454.34/x
  3. Step 3: Cross multiply
    18,927,018.28x = 28,449,795.45 × 12,491,454.34
  4. Step 4: Simplify right side
    18,927,018.28x = 355,379,320,846,014.75
  5. Step 5: Solve for x
    x = 355,379,320,846,014.75/18,927,018.28
  6. Step 6: Final answer
    x = 18,776,297.23

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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.