Home / 15,057,295.12-20,779,198.50-8,181,777.16

Finding the Fourth Proportional to 15,057,295.12, 20,779,198.50 and 8,181,777.16

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Solution

The fourth proportional to 15,057,295.12, 20,779,198.50 and 8,181,777.16 is: 11,290,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,057,295.12 : 20,779,198.50 = 8,181,777.16 : x
  2. Step 2: Convert to fraction form
    15,057,295.12/20,779,198.50 = 8,181,777.16/x
  3. Step 3: Cross multiply
    15,057,295.12x = 20,779,198.50 × 8,181,777.16
  4. Step 4: Simplify right side
    15,057,295.12x = 170,010,771,690,406.25
  5. Step 5: Solve for x
    x = 170,010,771,690,406.25/15,057,295.12
  6. Step 6: Final answer
    x = 11,290,923.79

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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.