Home / 20,261,096.88-28,007,436.51-18,077,600.97

Finding the Fourth Proportional to 20,261,096.88, 28,007,436.51 and 18,077,600.97

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Solution

The fourth proportional to 20,261,096.88, 28,007,436.51 and 18,077,600.97 is: 24,989,133.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261,096.88 : 28,007,436.51 = 18,077,600.97 : x
  2. Step 2: Convert to fraction form
    20,261,096.88/28,007,436.51 = 18,077,600.97/x
  3. Step 3: Cross multiply
    20,261,096.88x = 28,007,436.51 × 18,077,600.97
  4. Step 4: Simplify right side
    20,261,096.88x = 506,307,261,420,389.44
  5. Step 5: Solve for x
    x = 506,307,261,420,389.44/20,261,096.88
  6. Step 6: Final answer
    x = 24,989,133.83

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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.