Home / 12,126,945.40-18,192,945.30-4,042,432.60

Finding the Fourth Proportional to 12,126,945.40, 18,192,945.30 and 4,042,432.60

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Solution

The fourth proportional to 12,126,945.40, 18,192,945.30 and 4,042,432.60 is: 6,064,491.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126,945.40 : 18,192,945.30 = 4,042,432.60 : x
  2. Step 2: Convert to fraction form
    12,126,945.40/18,192,945.30 = 4,042,432.60/x
  3. Step 3: Cross multiply
    12,126,945.40x = 18,192,945.30 × 4,042,432.60
  4. Step 4: Simplify right side
    12,126,945.40x = 73,543,755,170,736.78
  5. Step 5: Solve for x
    x = 73,543,755,170,736.78/12,126,945.40
  6. Step 6: Final answer
    x = 6,064,491.32

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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.