Home / 9,781,778.30-13,498,229.61-5,430,863.50

Finding the Fourth Proportional to 9,781,778.30, 13,498,229.61 and 5,430,863.50

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Solution

The fourth proportional to 9,781,778.30, 13,498,229.61 and 5,430,863.50 is: 7,494,244.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,781,778.30 : 13,498,229.61 = 5,430,863.50 : x
  2. Step 2: Convert to fraction form
    9,781,778.30/13,498,229.61 = 5,430,863.50/x
  3. Step 3: Cross multiply
    9,781,778.30x = 13,498,229.61 × 5,430,863.50
  4. Step 4: Simplify right side
    9,781,778.30x = 73,307,042,469,822.66
  5. Step 5: Solve for x
    x = 73,307,042,469,822.66/9,781,778.30
  6. Step 6: Final answer
    x = 7,494,244.94

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1.5x scale

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.