Home / 205,618,558,247.48-308,265,626,815.72-129,912,135,983.48

Finding the Fourth Proportional to 205,618,558,247.48, 308,265,626,815.72 and 129,912,135,983.48

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Solution

The fourth proportional to 205,618,558,247.48, 308,265,626,815.72 and 129,912,135,983.48 is: 194,765,717,507.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,618,558,247.48 : 308,265,626,815.72 = 129,912,135,983.48 : x
  2. Step 2: Convert to fraction form
    205,618,558,247.48/308,265,626,815.72 = 129,912,135,983.48/x
  3. Step 3: Cross multiply
    205,618,558,247.48x = 308,265,626,815.72 × 129,912,135,983.48
  4. Step 4: Simplify right side
    205,618,558,247.48x = 40,047,446,029,916,507,734,016
  5. Step 5: Solve for x
    x = 40,047,446,029,916,507,734,016/205,618,558,247.48
  6. Step 6: Final answer
    x = 194,765,717,507.44

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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.