Home / 15,206,930-20,980,396.68-8,675,867.60

Finding the Fourth Proportional to 15,206,930, 20,980,396.68 and 8,675,867.60

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Solution

The fourth proportional to 15,206,930, 20,980,396.68 and 8,675,867.60 is: 11,969,749.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,206,930 : 20,980,396.68 = 8,675,867.60 : x
  2. Step 2: Convert to fraction form
    15,206,930/20,980,396.68 = 8,675,867.60/x
  3. Step 3: Cross multiply
    15,206,930x = 20,980,396.68 × 8,675,867.60
  4. Step 4: Simplify right side
    15,206,930x = 182,023,143,791,159.56
  5. Step 5: Solve for x
    x = 182,023,143,791,159.56/15,206,930
  6. Step 6: Final answer
    x = 11,969,749.57

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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.