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Finding the Fourth Proportional to 7,212,030.49, 9,952,604.49 and 3,949,051.60

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Solution

The fourth proportional to 7,212,030.49, 9,952,604.49 and 3,949,051.60 is: 5,449,692.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212,030.49 : 9,952,604.49 = 3,949,051.60 : x
  2. Step 2: Convert to fraction form
    7,212,030.49/9,952,604.49 = 3,949,051.60/x
  3. Step 3: Cross multiply
    7,212,030.49x = 9,952,604.49 × 3,949,051.60
  4. Step 4: Simplify right side
    7,212,030.49x = 39,303,348,685,401.69
  5. Step 5: Solve for x
    x = 39,303,348,685,401.69/7,212,030.49
  6. Step 6: Final answer
    x = 5,449,692.53

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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.