Home / 6,911,996.80-10,367,995.20-2,120,425.60

Finding the Fourth Proportional to 6,911,996.80, 10,367,995.20 and 2,120,425.60

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Solution

The fourth proportional to 6,911,996.80, 10,367,995.20 and 2,120,425.60 is: 3,180,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911,996.80 : 10,367,995.20 = 2,120,425.60 : x
  2. Step 2: Convert to fraction form
    6,911,996.80/10,367,995.20 = 2,120,425.60/x
  3. Step 3: Cross multiply
    6,911,996.80x = 10,367,995.20 × 2,120,425.60
  4. Step 4: Simplify right side
    6,911,996.80x = 21,984,562,442,757.12
  5. Step 5: Solve for x
    x = 21,984,562,442,757.12/6,911,996.80
  6. Step 6: Final answer
    x = 3,180,638.40

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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.