Home / 8,692,221.20-13,038,331.80-5,099,709.20

Finding the Fourth Proportional to 8,692,221.20, 13,038,331.80 and 5,099,709.20

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Solution

The fourth proportional to 8,692,221.20, 13,038,331.80 and 5,099,709.20 is: 7,649,563.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692,221.20 : 13,038,331.80 = 5,099,709.20 : x
  2. Step 2: Convert to fraction form
    8,692,221.20/13,038,331.80 = 5,099,709.20/x
  3. Step 3: Cross multiply
    8,692,221.20x = 13,038,331.80 × 5,099,709.20
  4. Step 4: Simplify right side
    8,692,221.20x = 66,491,700,633,112.56
  5. Step 5: Solve for x
    x = 66,491,700,633,112.56/8,692,221.20
  6. Step 6: Final answer
    x = 7,649,563.80

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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.