Home / 5,131,881.88-7,082,219.28-2,840,043.31

Finding the Fourth Proportional to 5,131,881.88, 7,082,219.28 and 2,840,043.31

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Solution

The fourth proportional to 5,131,881.88, 7,082,219.28 and 2,840,043.31 is: 3,919,382.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131,881.88 : 7,082,219.28 = 2,840,043.31 : x
  2. Step 2: Convert to fraction form
    5,131,881.88/7,082,219.28 = 2,840,043.31/x
  3. Step 3: Cross multiply
    5,131,881.88x = 7,082,219.28 × 2,840,043.31
  4. Step 4: Simplify right side
    5,131,881.88x = 20,113,809,486,117.02
  5. Step 5: Solve for x
    x = 20,113,809,486,117.02/5,131,881.88
  6. Step 6: Final answer
    x = 3,919,382.78

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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.