Home / 13,690,676.15-18,892,384.59-7,494,524.21

Finding the Fourth Proportional to 13,690,676.15, 18,892,384.59 and 7,494,524.21

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Solution

The fourth proportional to 13,690,676.15, 18,892,384.59 and 7,494,524.21 is: 10,342,033.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690,676.15 : 18,892,384.59 = 7,494,524.21 : x
  2. Step 2: Convert to fraction form
    13,690,676.15/18,892,384.59 = 7,494,524.21/x
  3. Step 3: Cross multiply
    13,690,676.15x = 18,892,384.59 × 7,494,524.21
  4. Step 4: Simplify right side
    13,690,676.15x = 141,589,433,571,819.53
  5. Step 5: Solve for x
    x = 141,589,433,571,819.53/13,690,676.15
  6. Step 6: Final answer
    x = 10,342,033.66

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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.