Home / 12,907,124.11-17,811,485.84-7,105,949.42

Finding the Fourth Proportional to 12,907,124.11, 17,811,485.84 and 7,105,949.42

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Solution

The fourth proportional to 12,907,124.11, 17,811,485.84 and 7,105,949.42 is: 9,806,020.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907,124.11 : 17,811,485.84 = 7,105,949.42 : x
  2. Step 2: Convert to fraction form
    12,907,124.11/17,811,485.84 = 7,105,949.42/x
  3. Step 3: Cross multiply
    12,907,124.11x = 17,811,485.84 × 7,105,949.42
  4. Step 4: Simplify right side
    12,907,124.11x = 126,567,517,463,012.30
  5. Step 5: Solve for x
    x = 126,567,517,463,012.30/12,907,124.11
  6. Step 6: Final answer
    x = 9,806,020.02

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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.