Home / 12,889,655.21-17,787,369.49-7,088,436.97

Finding the Fourth Proportional to 12,889,655.21, 17,787,369.49 and 7,088,436.97

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Solution

The fourth proportional to 12,889,655.21, 17,787,369.49 and 7,088,436.97 is: 9,781,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889,655.21 : 17,787,369.49 = 7,088,436.97 : x
  2. Step 2: Convert to fraction form
    12,889,655.21/17,787,369.49 = 7,088,436.97/x
  3. Step 3: Cross multiply
    12,889,655.21x = 17,787,369.49 × 7,088,436.97
  4. Step 4: Simplify right side
    12,889,655.21x = 126,084,647,429,776.55
  5. Step 5: Solve for x
    x = 126,084,647,429,776.55/12,889,655.21
  6. Step 6: Final answer
    x = 9,781,847.95

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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.