Home / 13,629,017.71-18,810,081.12-8,739,760.51

Finding the Fourth Proportional to 13,629,017.71, 18,810,081.12 and 8,739,760.51

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Solution

The fourth proportional to 13,629,017.71, 18,810,081.12 and 8,739,760.51 is: 12,062,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629,017.71 : 18,810,081.12 = 8,739,760.51 : x
  2. Step 2: Convert to fraction form
    13,629,017.71/18,810,081.12 = 8,739,760.51/x
  3. Step 3: Cross multiply
    13,629,017.71x = 18,810,081.12 × 8,739,760.51
  4. Step 4: Simplify right side
    13,629,017.71x = 164,395,604,162,472.56
  5. Step 5: Solve for x
    x = 164,395,604,162,472.56/13,629,017.71
  6. Step 6: Final answer
    x = 12,062,175.55

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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.