Home / 123,378,964,631.55-170,287,388,982.63-80,028,972,765.27

Finding the Fourth Proportional to 123,378,964,631.55, 170,287,388,982.63 and 80,028,972,765.27

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Solution

The fourth proportional to 123,378,964,631.55, 170,287,388,982.63 and 80,028,972,765.27 is: 110,455,820,859.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,378,964,631.55 : 170,287,388,982.63 = 80,028,972,765.27 : x
  2. Step 2: Convert to fraction form
    123,378,964,631.55/170,287,388,982.63 = 80,028,972,765.27/x
  3. Step 3: Cross multiply
    123,378,964,631.55x = 170,287,388,982.63 × 80,028,972,765.27
  4. Step 4: Simplify right side
    123,378,964,631.55x = 13,627,924,815,159,836,540,928
  5. Step 5: Solve for x
    x = 13,627,924,815,159,836,540,928/123,378,964,631.55
  6. Step 6: Final answer
    x = 110,455,820,859.39

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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.