Home / 12,256,031.70-18,384,047.55-8,146,221.30

Finding the Fourth Proportional to 12,256,031.70, 18,384,047.55 and 8,146,221.30

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Solution

The fourth proportional to 12,256,031.70, 18,384,047.55 and 8,146,221.30 is: 12,219,331.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256,031.70 : 18,384,047.55 = 8,146,221.30 : x
  2. Step 2: Convert to fraction form
    12,256,031.70/18,384,047.55 = 8,146,221.30/x
  3. Step 3: Cross multiply
    12,256,031.70x = 18,384,047.55 × 8,146,221.30
  4. Step 4: Simplify right side
    12,256,031.70x = 149,760,519,732,022.81
  5. Step 5: Solve for x
    x = 149,760,519,732,022.81/12,256,031.70
  6. Step 6: Final answer
    x = 12,219,331.95

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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.