Home / 12,161,921.40-16,783,453.19-6,655,297.56

Finding the Fourth Proportional to 12,161,921.40, 16,783,453.19 and 6,655,297.56

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Solution

The fourth proportional to 12,161,921.40, 16,783,453.19 and 6,655,297.56 is: 9,184,311.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161,921.40 : 16,783,453.19 = 6,655,297.56 : x
  2. Step 2: Convert to fraction form
    12,161,921.40/16,783,453.19 = 6,655,297.56/x
  3. Step 3: Cross multiply
    12,161,921.40x = 16,783,453.19 × 6,655,297.56
  4. Step 4: Simplify right side
    12,161,921.40x = 111,698,874,979,863.95
  5. Step 5: Solve for x
    x = 111,698,874,979,863.95/12,161,921.40
  6. Step 6: Final answer
    x = 9,184,311.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.