Home / 13,682,103.68-18,881,304.54-7,487,151.75

Finding the Fourth Proportional to 13,682,103.68, 18,881,304.54 and 7,487,151.75

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Solution

The fourth proportional to 13,682,103.68, 18,881,304.54 and 7,487,151.75 is: 10,332,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,682,103.68 : 18,881,304.54 = 7,487,151.75 : x
  2. Step 2: Convert to fraction form
    13,682,103.68/18,881,304.54 = 7,487,151.75/x
  3. Step 3: Cross multiply
    13,682,103.68x = 18,881,304.54 × 7,487,151.75
  4. Step 4: Simplify right side
    13,682,103.68x = 141,367,192,328,943.94
  5. Step 5: Solve for x
    x = 141,367,192,328,943.94/13,682,103.68
  6. Step 6: Final answer
    x = 10,332,270.21

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1.5x scale

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.