Home / 15,082,539-20,813,728.86-8,206,902.60

Finding the Fourth Proportional to 15,082,539, 20,813,728.86 and 8,206,902.60

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Solution

The fourth proportional to 15,082,539, 20,813,728.86 and 8,206,902.60 is: 11,325,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,082,539 : 20,813,728.86 = 8,206,902.60 : x
  2. Step 2: Convert to fraction form
    15,082,539/20,813,728.86 = 8,206,902.60/x
  3. Step 3: Cross multiply
    15,082,539x = 20,813,728.86 × 8,206,902.60
  4. Step 4: Simplify right side
    15,082,539x = 170,816,245,496,829.03
  5. Step 5: Solve for x
    x = 170,816,245,496,829.03/15,082,539
  6. Step 6: Final answer
    x = 11,325,430.39

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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.