Home / 7,942,841.86-11,912,739-3,085,142.98

Finding the Fourth Proportional to 7,942,841.86, 11,912,739 and 3,085,142.98

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Solution

The fourth proportional to 7,942,841.86, 11,912,739 and 3,085,142.98 is: 4,627,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942,841.86 : 11,912,739 = 3,085,142.98 : x
  2. Step 2: Convert to fraction form
    7,942,841.86/11,912,739 = 3,085,142.98/x
  3. Step 3: Cross multiply
    7,942,841.86x = 11,912,739 × 3,085,142.98
  4. Step 4: Simplify right side
    7,942,841.86x = 36,752,503,098,422.22
  5. Step 5: Solve for x
    x = 36,752,503,098,422.22/7,942,841.86
  6. Step 6: Final answer
    x = 4,627,122.60

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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.