Home / 28,324,521.82-42,325,538.85-21,267,632.56

Finding the Fourth Proportional to 28,324,521.82, 42,325,538.85 and 21,267,632.56

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Solution

The fourth proportional to 28,324,521.82, 42,325,538.85 and 21,267,632.56 is: 31,780,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324,521.82 : 42,325,538.85 = 21,267,632.56 : x
  2. Step 2: Convert to fraction form
    28,324,521.82/42,325,538.85 = 21,267,632.56/x
  3. Step 3: Cross multiply
    28,324,521.82x = 42,325,538.85 × 21,267,632.56
  4. Step 4: Simplify right side
    28,324,521.82x = 900,164,008,165,804.88
  5. Step 5: Solve for x
    x = 900,164,008,165,804.88/28,324,521.82
  6. Step 6: Final answer
    x = 31,780,377.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.