Home / 690,494,408.02-1,036,396,424.94-427,383,073.14

Finding the Fourth Proportional to 690,494,408.02, 1,036,396,424.94 and 427,383,073.14

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Solution

The fourth proportional to 690,494,408.02, 1,036,396,424.94 and 427,383,073.14 is: 641,479,907.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,494,408.02 : 1,036,396,424.94 = 427,383,073.14 : x
  2. Step 2: Convert to fraction form
    690,494,408.02/1,036,396,424.94 = 427,383,073.14/x
  3. Step 3: Cross multiply
    690,494,408.02x = 1,036,396,424.94 × 427,383,073.14
  4. Step 4: Simplify right side
    690,494,408.02x = 442,938,289,086,075,392
  5. Step 5: Solve for x
    x = 442,938,289,086,075,392/690,494,408.02
  6. Step 6: Final answer
    x = 641,479,907.64

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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.