Home / 15,004,448.92-20,706,238.92-8,128,930.98

Finding the Fourth Proportional to 15,004,448.92, 20,706,238.92 and 8,128,930.98

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Solution

The fourth proportional to 15,004,448.92, 20,706,238.92 and 8,128,930.98 is: 11,217,978.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,448.92 : 20,706,238.92 = 8,128,930.98 : x
  2. Step 2: Convert to fraction form
    15,004,448.92/20,706,238.92 = 8,128,930.98/x
  3. Step 3: Cross multiply
    15,004,448.92x = 20,706,238.92 × 8,128,930.98
  4. Step 4: Simplify right side
    15,004,448.92x = 168,319,587,036,069.75
  5. Step 5: Solve for x
    x = 168,319,587,036,069.75/15,004,448.92
  6. Step 6: Final answer
    x = 11,217,978.61

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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.