Home / 12,178,165.56-16,805,162.28-6,670,581.60

Finding the Fourth Proportional to 12,178,165.56, 16,805,162.28 and 6,670,581.60

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Solution

The fourth proportional to 12,178,165.56, 16,805,162.28 and 6,670,581.60 is: 9,205,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178,165.56 : 16,805,162.28 = 6,670,581.60 : x
  2. Step 2: Convert to fraction form
    12,178,165.56/16,805,162.28 = 6,670,581.60/x
  3. Step 3: Cross multiply
    12,178,165.56x = 16,805,162.28 × 6,670,581.60
  4. Step 4: Simplify right side
    12,178,165.56x = 112,100,206,289,982.05
  5. Step 5: Solve for x
    x = 112,100,206,289,982.05/12,178,165.56
  6. Step 6: Final answer
    x = 9,205,015.79

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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.