Home / 15,004,709.70-20,706,519.69-8,129,191.56

Finding the Fourth Proportional to 15,004,709.70, 20,706,519.69 and 8,129,191.56

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Solution

The fourth proportional to 15,004,709.70, 20,706,519.69 and 8,129,191.56 is: 11,218,295.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,709.70 : 20,706,519.69 = 8,129,191.56 : x
  2. Step 2: Convert to fraction form
    15,004,709.70/20,706,519.69 = 8,129,191.56/x
  3. Step 3: Cross multiply
    15,004,709.70x = 20,706,519.69 × 8,129,191.56
  4. Step 4: Simplify right side
    15,004,709.70x = 168,327,265,100,921.81
  5. Step 5: Solve for x
    x = 168,327,265,100,921.81/15,004,709.70
  6. Step 6: Final answer
    x = 11,218,295.35

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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.