Home / 690,412,028.93-1,035,610,957.37-399,093,787.43

Finding the Fourth Proportional to 690,412,028.93, 1,035,610,957.37 and 399,093,787.43

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Solution

The fourth proportional to 690,412,028.93, 1,035,610,957.37 and 399,093,787.43 is: 598,636,585.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,412,028.93 : 1,035,610,957.37 = 399,093,787.43 : x
  2. Step 2: Convert to fraction form
    690,412,028.93/1,035,610,957.37 = 399,093,787.43/x
  3. Step 3: Cross multiply
    690,412,028.93x = 1,035,610,957.37 × 399,093,787.43
  4. Step 4: Simplify right side
    690,412,028.93x = 413,305,899,273,628,096
  5. Step 5: Solve for x
    x = 413,305,899,273,628,096/690,412,028.93
  6. Step 6: Final answer
    x = 598,636,585.05

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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.