Home / 13,609,856.80-20,414,785.20-8,571,008.80

Finding the Fourth Proportional to 13,609,856.80, 20,414,785.20 and 8,571,008.80

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Solution

The fourth proportional to 13,609,856.80, 20,414,785.20 and 8,571,008.80 is: 12,856,513.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,609,856.80 : 20,414,785.20 = 8,571,008.80 : x
  2. Step 2: Convert to fraction form
    13,609,856.80/20,414,785.20 = 8,571,008.80/x
  3. Step 3: Cross multiply
    13,609,856.80x = 20,414,785.20 × 8,571,008.80
  4. Step 4: Simplify right side
    13,609,856.80x = 174,975,303,599,309.78
  5. Step 5: Solve for x
    x = 174,975,303,599,309.78/13,609,856.80
  6. Step 6: Final answer
    x = 12,856,513.20

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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.