Home / 8,399,138.80-12,598,708.20-5,193,871.60

Finding the Fourth Proportional to 8,399,138.80, 12,598,708.20 and 5,193,871.60

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Solution

The fourth proportional to 8,399,138.80, 12,598,708.20 and 5,193,871.60 is: 7,790,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399,138.80 : 12,598,708.20 = 5,193,871.60 : x
  2. Step 2: Convert to fraction form
    8,399,138.80/12,598,708.20 = 5,193,871.60/x
  3. Step 3: Cross multiply
    8,399,138.80x = 12,598,708.20 × 5,193,871.60
  4. Step 4: Simplify right side
    8,399,138.80x = 65,436,072,716,667.11
  5. Step 5: Solve for x
    x = 65,436,072,716,667.11/8,399,138.80
  6. Step 6: Final answer
    x = 7,790,807.40

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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.