Home / 28,716,174.22-39,628,785.72-15,663,429.22

Finding the Fourth Proportional to 28,716,174.22, 39,628,785.72 and 15,663,429.22

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Solution

The fourth proportional to 28,716,174.22, 39,628,785.72 and 15,663,429.22 is: 21,615,786.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716,174.22 : 39,628,785.72 = 15,663,429.22 : x
  2. Step 2: Convert to fraction form
    28,716,174.22/39,628,785.72 = 15,663,429.22/x
  3. Step 3: Cross multiply
    28,716,174.22x = 39,628,785.72 × 15,663,429.22
  4. Step 4: Simplify right side
    28,716,174.22x = 620,722,680,199,766.75
  5. Step 5: Solve for x
    x = 620,722,680,199,766.75/28,716,174.22
  6. Step 6: Final answer
    x = 21,615,786.12

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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.