Home / 690,494,411.01-1,036,396,429.44-427,383,076.14

Finding the Fourth Proportional to 690,494,411.01, 1,036,396,429.44 and 427,383,076.14

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Solution

The fourth proportional to 690,494,411.01, 1,036,396,429.44 and 427,383,076.14 is: 641,479,912.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,494,411.01 : 1,036,396,429.44 = 427,383,076.14 : x
  2. Step 2: Convert to fraction form
    690,494,411.01/1,036,396,429.44 = 427,383,076.14/x
  3. Step 3: Cross multiply
    690,494,411.01x = 1,036,396,429.44 × 427,383,076.14
  4. Step 4: Simplify right side
    690,494,411.01x = 442,938,294,114,579,648
  5. Step 5: Solve for x
    x = 442,938,294,114,579,648/690,494,411.01
  6. Step 6: Final answer
    x = 641,479,912.15

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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.