Home / 4,912,221.54-6,778,706.82-2,819,408.49

Finding the Fourth Proportional to 4,912,221.54, 6,778,706.82 and 2,819,408.49

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Solution

The fourth proportional to 4,912,221.54, 6,778,706.82 and 2,819,408.49 is: 3,890,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,912,221.54 : 6,778,706.82 = 2,819,408.49 : x
  2. Step 2: Convert to fraction form
    4,912,221.54/6,778,706.82 = 2,819,408.49/x
  3. Step 3: Cross multiply
    4,912,221.54x = 6,778,706.82 × 2,819,408.49
  4. Step 4: Simplify right side
    4,912,221.54x = 19,111,943,564,815.30
  5. Step 5: Solve for x
    x = 19,111,943,564,815.30/4,912,221.54
  6. Step 6: Final answer
    x = 3,890,692.51

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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.