Home / 20,261,097.88-28,007,437.89-18,077,601.97

Finding the Fourth Proportional to 20,261,097.88, 28,007,437.89 and 18,077,601.97

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Solution

The fourth proportional to 20,261,097.88, 28,007,437.89 and 18,077,601.97 is: 24,989,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261,097.88 : 28,007,437.89 = 18,077,601.97 : x
  2. Step 2: Convert to fraction form
    20,261,097.88/28,007,437.89 = 18,077,601.97/x
  3. Step 3: Cross multiply
    20,261,097.88x = 28,007,437.89 × 18,077,601.97
  4. Step 4: Simplify right side
    20,261,097.88x = 506,307,314,374,916.62
  5. Step 5: Solve for x
    x = 506,307,314,374,916.62/20,261,097.88
  6. Step 6: Final answer
    x = 24,989,135.21

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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.