Home / 28,324,520.82-42,325,537.36-21,267,631.56

Finding the Fourth Proportional to 28,324,520.82, 42,325,537.36 and 21,267,631.56

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Solution

The fourth proportional to 28,324,520.82, 42,325,537.36 and 21,267,631.56 is: 31,780,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324,520.82 : 42,325,537.36 = 21,267,631.56 : x
  2. Step 2: Convert to fraction form
    28,324,520.82/42,325,537.36 = 21,267,631.56/x
  3. Step 3: Cross multiply
    28,324,520.82x = 42,325,537.36 × 21,267,631.56
  4. Step 4: Simplify right side
    28,324,520.82x = 900,163,934,151,495
  5. Step 5: Solve for x
    x = 900,163,934,151,495/28,324,520.82
  6. Step 6: Final answer
    x = 31,780,376.44

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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.