Home / 20,072,865.72-30,110,421.78-6,427,212.60

Finding the Fourth Proportional to 20,072,865.72, 30,110,421.78 and 6,427,212.60

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Solution

The fourth proportional to 20,072,865.72, 30,110,421.78 and 6,427,212.60 is: 9,641,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072,865.72 : 30,110,421.78 = 6,427,212.60 : x
  2. Step 2: Convert to fraction form
    20,072,865.72/30,110,421.78 = 6,427,212.60/x
  3. Step 3: Cross multiply
    20,072,865.72x = 30,110,421.78 × 6,427,212.60
  4. Step 4: Simplify right side
    20,072,865.72x = 193,526,082,255,730.44
  5. Step 5: Solve for x
    x = 193,526,082,255,730.44/20,072,865.72
  6. Step 6: Final answer
    x = 9,641,178.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.