Home / 13,555,190.70-20,348,532.45-8,169,921.90

Finding the Fourth Proportional to 13,555,190.70, 20,348,532.45 and 8,169,921.90

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Solution

The fourth proportional to 13,555,190.70, 20,348,532.45 and 8,169,921.90 is: 12,264,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555,190.70 : 20,348,532.45 = 8,169,921.90 : x
  2. Step 2: Convert to fraction form
    13,555,190.70/20,348,532.45 = 8,169,921.90/x
  3. Step 3: Cross multiply
    13,555,190.70x = 20,348,532.45 × 8,169,921.90
  4. Step 4: Simplify right side
    13,555,190.70x = 166,245,920,896,115.66
  5. Step 5: Solve for x
    x = 166,245,920,896,115.66/13,555,190.70
  6. Step 6: Final answer
    x = 12,264,373.45

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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.