Home / 15,206,639.12-20,984,987.04-8,237,183.60

Finding the Fourth Proportional to 15,206,639.12, 20,984,987.04 and 8,237,183.60

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Solution

The fourth proportional to 15,206,639.12, 20,984,987.04 and 8,237,183.60 is: 11,367,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,206,639.12 : 20,984,987.04 = 8,237,183.60 : x
  2. Step 2: Convert to fraction form
    15,206,639.12/20,984,987.04 = 8,237,183.60/x
  3. Step 3: Cross multiply
    15,206,639.12x = 20,984,987.04 × 8,237,183.60
  4. Step 4: Simplify right side
    15,206,639.12x = 172,857,191,092,100.53
  5. Step 5: Solve for x
    x = 172,857,191,092,100.53/15,206,639.12
  6. Step 6: Final answer
    x = 11,367,218.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.