Home / 13,452,127.20-20,178,190.80-8,665,221.60

Finding the Fourth Proportional to 13,452,127.20, 20,178,190.80 and 8,665,221.60

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Solution

The fourth proportional to 13,452,127.20, 20,178,190.80 and 8,665,221.60 is: 12,997,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452,127.20 : 20,178,190.80 = 8,665,221.60 : x
  2. Step 2: Convert to fraction form
    13,452,127.20/20,178,190.80 = 8,665,221.60/x
  3. Step 3: Cross multiply
    13,452,127.20x = 20,178,190.80 × 8,665,221.60
  4. Step 4: Simplify right side
    13,452,127.20x = 174,848,494,769,081.28
  5. Step 5: Solve for x
    x = 174,848,494,769,081.28/13,452,127.20
  6. Step 6: Final answer
    x = 12,997,832.40

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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.