Home / 28,773,813.63-39,707,393.56-15,720,791.61

Finding the Fourth Proportional to 28,773,813.63, 39,707,393.56 and 15,720,791.61

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Solution

The fourth proportional to 28,773,813.63, 39,707,393.56 and 15,720,791.61 is: 21,694,436.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773,813.63 : 39,707,393.56 = 15,720,791.61 : x
  2. Step 2: Convert to fraction form
    28,773,813.63/39,707,393.56 = 15,720,791.61/x
  3. Step 3: Cross multiply
    28,773,813.63x = 39,707,393.56 × 15,720,791.61
  4. Step 4: Simplify right side
    28,773,813.63x = 624,231,659,533,016
  5. Step 5: Solve for x
    x = 624,231,659,533,016/28,773,813.63
  6. Step 6: Final answer
    x = 21,694,436.04

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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.