Home / 12,307,778.21-16,984,691.93-6,800,999.69

Finding the Fourth Proportional to 12,307,778.21, 16,984,691.93 and 6,800,999.69

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Solution

The fourth proportional to 12,307,778.21, 16,984,691.93 and 6,800,999.69 is: 9,385,356.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307,778.21 : 16,984,691.93 = 6,800,999.69 : x
  2. Step 2: Convert to fraction form
    12,307,778.21/16,984,691.93 = 6,800,999.69/x
  3. Step 3: Cross multiply
    12,307,778.21x = 16,984,691.93 × 6,800,999.69
  4. Step 4: Simplify right side
    12,307,778.21x = 115,512,884,431,747.05
  5. Step 5: Solve for x
    x = 115,512,884,431,747.05/12,307,778.21
  6. Step 6: Final answer
    x = 9,385,356.36

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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.