Home / 13,921,785.90-20,877,676.09-4,821,432.86

Finding the Fourth Proportional to 13,921,785.90, 20,877,676.09 and 4,821,432.86

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Solution

The fourth proportional to 13,921,785.90, 20,877,676.09 and 4,821,432.86 is: 7,230,416.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921,785.90 : 20,877,676.09 = 4,821,432.86 : x
  2. Step 2: Convert to fraction form
    13,921,785.90/20,877,676.09 = 4,821,432.86/x
  3. Step 3: Cross multiply
    13,921,785.90x = 20,877,676.09 × 4,821,432.86
  4. Step 4: Simplify right side
    13,921,785.90x = 100,660,313,580,902.92
  5. Step 5: Solve for x
    x = 100,660,313,580,902.92/13,921,785.90
  6. Step 6: Final answer
    x = 7,230,416.72

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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.