Home / 385,456,978,609.33-531,943,387,290.25-211,848,271,707.38

Finding the Fourth Proportional to 385,456,978,609.33, 531,943,387,290.25 and 211,848,271,707.38

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Solution

The fourth proportional to 385,456,978,609.33, 531,943,387,290.25 and 211,848,271,707.38 is: 292,357,626,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,456,978,609.33 : 531,943,387,290.25 = 211,848,271,707.38 : x
  2. Step 2: Convert to fraction form
    385,456,978,609.33/531,943,387,290.25 = 211,848,271,707.38/x
  3. Step 3: Cross multiply
    385,456,978,609.33x = 531,943,387,290.25 × 211,848,271,707.38
  4. Step 4: Simplify right side
    385,456,978,609.33x = 112,691,287,243,608,960,270,336
  5. Step 5: Solve for x
    x = 112,691,287,243,608,960,270,336/385,456,978,609.33
  6. Step 6: Final answer
    x = 292,357,626,135.56

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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.