Home / 12,254,951.70-18,382,427.55-8,145,141.30

Finding the Fourth Proportional to 12,254,951.70, 18,382,427.55 and 8,145,141.30

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Solution

The fourth proportional to 12,254,951.70, 18,382,427.55 and 8,145,141.30 is: 12,217,711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,254,951.70 : 18,382,427.55 = 8,145,141.30 : x
  2. Step 2: Convert to fraction form
    12,254,951.70/18,382,427.55 = 8,145,141.30/x
  3. Step 3: Cross multiply
    12,254,951.70x = 18,382,427.55 × 8,145,141.30
  4. Step 4: Simplify right side
    12,254,951.70x = 149,727,469,831,762.81
  5. Step 5: Solve for x
    x = 149,727,469,831,762.81/12,254,951.70
  6. Step 6: Final answer
    x = 12,217,711.95

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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.