Home / 15,772,638.38-21,757,965.93-13,703,003.73

Finding the Fourth Proportional to 15,772,638.38, 21,757,965.93 and 13,703,003.73

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Solution

The fourth proportional to 15,772,638.38, 21,757,965.93 and 13,703,003.73 is: 18,902,955.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772,638.38 : 21,757,965.93 = 13,703,003.73 : x
  2. Step 2: Convert to fraction form
    15,772,638.38/21,757,965.93 = 13,703,003.73/x
  3. Step 3: Cross multiply
    15,772,638.38x = 21,757,965.93 × 13,703,003.73
  4. Step 4: Simplify right side
    15,772,638.38x = 298,149,488,296,002.94
  5. Step 5: Solve for x
    x = 298,149,488,296,002.94/15,772,638.38
  6. Step 6: Final answer
    x = 18,902,955.94

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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.