Home / 690,947,796.79-1,036,831,236.85-254,554,687.49

Finding the Fourth Proportional to 690,947,796.79, 1,036,831,236.85 and 254,554,687.49

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Solution

The fourth proportional to 690,947,796.79, 1,036,831,236.85 and 254,554,687.49 is: 381,982,912.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,947,796.79 : 1,036,831,236.85 = 254,554,687.49 : x
  2. Step 2: Convert to fraction form
    690,947,796.79/1,036,831,236.85 = 254,554,687.49/x
  3. Step 3: Cross multiply
    690,947,796.79x = 1,036,831,236.85 × 254,554,687.49
  4. Step 4: Simplify right side
    690,947,796.79x = 263,930,251,476,221,952
  5. Step 5: Solve for x
    x = 263,930,251,476,221,952/690,947,796.79
  6. Step 6: Final answer
    x = 381,982,912.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.