Home / 15,004,451.67-20,706,242.72-8,128,933.73

Finding the Fourth Proportional to 15,004,451.67, 20,706,242.72 and 8,128,933.73

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Solution

The fourth proportional to 15,004,451.67, 20,706,242.72 and 8,128,933.73 is: 11,217,982.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,451.67 : 20,706,242.72 = 8,128,933.73 : x
  2. Step 2: Convert to fraction form
    15,004,451.67/20,706,242.72 = 8,128,933.73/x
  3. Step 3: Cross multiply
    15,004,451.67x = 20,706,242.72 × 8,128,933.73
  4. Step 4: Simplify right side
    15,004,451.67x = 168,319,674,879,295.88
  5. Step 5: Solve for x
    x = 168,319,674,879,295.88/15,004,451.67
  6. Step 6: Final answer
    x = 11,217,982.41

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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.