Home / 20,757,996.82-28,643,578.59-11,465,014.78

Finding the Fourth Proportional to 20,757,996.82, 28,643,578.59 and 11,465,014.78

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Solution

The fourth proportional to 20,757,996.82, 28,643,578.59 and 11,465,014.78 is: 15,820,363.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,996.82 : 28,643,578.59 = 11,465,014.78 : x
  2. Step 2: Convert to fraction form
    20,757,996.82/28,643,578.59 = 11,465,014.78/x
  3. Step 3: Cross multiply
    20,757,996.82x = 28,643,578.59 × 11,465,014.78
  4. Step 4: Simplify right side
    20,757,996.82x = 328,399,051,886,441.56
  5. Step 5: Solve for x
    x = 328,399,051,886,441.56/20,757,996.82
  6. Step 6: Final answer
    x = 15,820,363.34

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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.