Home / 764,805,858.36-1,147,143,072.92-465,597,131.78

Finding the Fourth Proportional to 764,805,858.36, 1,147,143,072.92 and 465,597,131.78

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Solution

The fourth proportional to 764,805,858.36, 1,147,143,072.92 and 465,597,131.78 is: 698,355,692.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,805,858.36 : 1,147,143,072.92 = 465,597,131.78 : x
  2. Step 2: Convert to fraction form
    764,805,858.36/1,147,143,072.92 = 465,597,131.78/x
  3. Step 3: Cross multiply
    764,805,858.36x = 1,147,143,072.92 × 465,597,131.78
  4. Step 4: Simplify right side
    764,805,858.36x = 534,106,524,484,783,616
  5. Step 5: Solve for x
    x = 534,106,524,484,783,616/764,805,858.36
  6. Step 6: Final answer
    x = 698,355,692.03

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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.