Home / 13,780,991.70-20,671,487.55-8,994,086.10

Finding the Fourth Proportional to 13,780,991.70, 20,671,487.55 and 8,994,086.10

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Solution

The fourth proportional to 13,780,991.70, 20,671,487.55 and 8,994,086.10 is: 13,491,129.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780,991.70 : 20,671,487.55 = 8,994,086.10 : x
  2. Step 2: Convert to fraction form
    13,780,991.70/20,671,487.55 = 8,994,086.10/x
  3. Step 3: Cross multiply
    13,780,991.70x = 20,671,487.55 × 8,994,086.10
  4. Step 4: Simplify right side
    13,780,991.70x = 185,921,138,839,778.06
  5. Step 5: Solve for x
    x = 185,921,138,839,778.06/13,780,991.70
  6. Step 6: Final answer
    x = 13,491,129.15

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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.