Home / 39,975,907.04-55,166,770.20-21,641,192.56

Finding the Fourth Proportional to 39,975,907.04, 55,166,770.20 and 21,641,192.56

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Solution

The fourth proportional to 39,975,907.04, 55,166,770.20 and 21,641,192.56 is: 29,864,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,975,907.04 : 55,166,770.20 = 21,641,192.56 : x
  2. Step 2: Convert to fraction form
    39,975,907.04/55,166,770.20 = 21,641,192.56/x
  3. Step 3: Cross multiply
    39,975,907.04x = 55,166,770.20 × 21,641,192.56
  4. Step 4: Simplify right side
    39,975,907.04x = 1,193,874,696,811,469.75
  5. Step 5: Solve for x
    x = 1,193,874,696,811,469.75/39,975,907.04
  6. Step 6: Final answer
    x = 29,864,855.74

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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.