Home / 13,762,448.21-18,992,725.76-7,568,002.78

Finding the Fourth Proportional to 13,762,448.21, 18,992,725.76 and 7,568,002.78

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Solution

The fourth proportional to 13,762,448.21, 18,992,725.76 and 7,568,002.78 is: 10,444,144.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762,448.21 : 18,992,725.76 = 7,568,002.78 : x
  2. Step 2: Convert to fraction form
    13,762,448.21/18,992,725.76 = 7,568,002.78/x
  3. Step 3: Cross multiply
    13,762,448.21x = 18,992,725.76 × 7,568,002.78
  4. Step 4: Simplify right side
    13,762,448.21x = 143,737,001,322,895.81
  5. Step 5: Solve for x
    x = 143,737,001,322,895.81/13,762,448.21
  6. Step 6: Final answer
    x = 10,444,144.76

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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.