Home / 15,004,188.29-20,705,800.97-8,128,670.36

Finding the Fourth Proportional to 15,004,188.29, 20,705,800.97 and 8,128,670.36

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Solution

The fourth proportional to 15,004,188.29, 20,705,800.97 and 8,128,670.36 is: 11,217,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004,188.29 : 20,705,800.97 = 8,128,670.36 : x
  2. Step 2: Convert to fraction form
    15,004,188.29/20,705,800.97 = 8,128,670.36/x
  3. Step 3: Cross multiply
    15,004,188.29x = 20,705,800.97 × 8,128,670.36
  4. Step 4: Simplify right side
    15,004,188.29x = 168,310,630,541,690.94
  5. Step 5: Solve for x
    x = 168,310,630,541,690.94/15,004,188.29
  6. Step 6: Final answer
    x = 11,217,576.54

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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.