Home / 13,187,422.70-19,781,134.05-8,085,589.10

Finding the Fourth Proportional to 13,187,422.70, 19,781,134.05 and 8,085,589.10

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Solution

The fourth proportional to 13,187,422.70, 19,781,134.05 and 8,085,589.10 is: 12,128,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,422.70 : 19,781,134.05 = 8,085,589.10 : x
  2. Step 2: Convert to fraction form
    13,187,422.70/19,781,134.05 = 8,085,589.10/x
  3. Step 3: Cross multiply
    13,187,422.70x = 19,781,134.05 × 8,085,589.10
  4. Step 4: Simplify right side
    13,187,422.70x = 159,942,121,860,318.84
  5. Step 5: Solve for x
    x = 159,942,121,860,318.84/13,187,422.70
  6. Step 6: Final answer
    x = 12,128,383.65

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Double scale
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Similar ratio
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1.5x scale

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.