Home / 5,180,821.82-7,149,648.53-2,857,784.93

Finding the Fourth Proportional to 5,180,821.82, 7,149,648.53 and 2,857,784.93

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Solution

The fourth proportional to 5,180,821.82, 7,149,648.53 and 2,857,784.93 is: 3,943,806.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180,821.82 : 7,149,648.53 = 2,857,784.93 : x
  2. Step 2: Convert to fraction form
    5,180,821.82/7,149,648.53 = 2,857,784.93/x
  3. Step 3: Cross multiply
    5,180,821.82x = 7,149,648.53 × 2,857,784.93
  4. Step 4: Simplify right side
    5,180,821.82x = 20,432,157,809,541.73
  5. Step 5: Solve for x
    x = 20,432,157,809,541.73/5,180,821.82
  6. Step 6: Final answer
    x = 3,943,806.31

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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.