Home / 8,128,280.57-12,202,825.37-6,982,855.22

Finding the Fourth Proportional to 8,128,280.57, 12,202,825.37 and 6,982,855.22

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Solution

The fourth proportional to 8,128,280.57, 12,202,825.37 and 6,982,855.22 is: 10,483,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128,280.57 : 12,202,825.37 = 6,982,855.22 : x
  2. Step 2: Convert to fraction form
    8,128,280.57/12,202,825.37 = 6,982,855.22/x
  3. Step 3: Cross multiply
    8,128,280.57x = 12,202,825.37 × 6,982,855.22
  4. Step 4: Simplify right side
    8,128,280.57x = 85,210,562,829,245.72
  5. Step 5: Solve for x
    x = 85,210,562,829,245.72/8,128,280.57
  6. Step 6: Final answer
    x = 10,483,221.16

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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.