Home / 8,682,128.20-13,019,255.70-3,288,986.20

Finding the Fourth Proportional to 8,682,128.20, 13,019,255.70 and 3,288,986.20

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Solution

The fourth proportional to 8,682,128.20, 13,019,255.70 and 3,288,986.20 is: 4,931,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682,128.20 : 13,019,255.70 = 3,288,986.20 : x
  2. Step 2: Convert to fraction form
    8,682,128.20/13,019,255.70 = 3,288,986.20/x
  3. Step 3: Cross multiply
    8,682,128.20x = 13,019,255.70 × 3,288,986.20
  4. Step 4: Simplify right side
    8,682,128.20x = 42,820,152,331,571.34
  5. Step 5: Solve for x
    x = 42,820,152,331,571.34/8,682,128.20
  6. Step 6: Final answer
    x = 4,931,988.03

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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.