Home / 15,054,179.85-20,774,657.39-8,178,718.41

Finding the Fourth Proportional to 15,054,179.85, 20,774,657.39 and 8,178,718.41

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Solution

The fourth proportional to 15,054,179.85, 20,774,657.39 and 8,178,718.41 is: 11,286,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054,179.85 : 20,774,657.39 = 8,178,718.41 : x
  2. Step 2: Convert to fraction form
    15,054,179.85/20,774,657.39 = 8,178,718.41/x
  3. Step 3: Cross multiply
    15,054,179.85x = 20,774,657.39 × 8,178,718.41
  4. Step 4: Simplify right side
    15,054,179.85x = 169,910,072,816,141.97
  5. Step 5: Solve for x
    x = 169,910,072,816,141.97/15,054,179.85
  6. Step 6: Final answer
    x = 11,286,571.21

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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.