Home / 5,179,009,692.72-7,147,587,243.48-3,173,175,983.28

Finding the Fourth Proportional to 5,179,009,692.72, 7,147,587,243.48 and 3,173,175,983.28

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Solution

The fourth proportional to 5,179,009,692.72, 7,147,587,243.48 and 3,173,175,983.28 is: 4,379,322,211.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179,009,692.72 : 7,147,587,243.48 = 3,173,175,983.28 : x
  2. Step 2: Convert to fraction form
    5,179,009,692.72/7,147,587,243.48 = 3,173,175,983.28/x
  3. Step 3: Cross multiply
    5,179,009,692.72x = 7,147,587,243.48 × 3,173,175,983.28
  4. Step 4: Simplify right side
    5,179,009,692.72x = 22,680,552,179,409,231,872
  5. Step 5: Solve for x
    x = 22,680,552,179,409,231,872/5,179,009,692.72
  6. Step 6: Final answer
    x = 4,379,322,211.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.