Home / 21,212,745,872.36-31,824,523,563.54-6,290,456,548.68

Finding the Fourth Proportional to 21,212,745,872.36, 31,824,523,563.54 and 6,290,456,548.68

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Solution

The fourth proportional to 21,212,745,872.36, 31,824,523,563.54 and 6,290,456,548.68 is: 9,437,287,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,745,872.36 : 31,824,523,563.54 = 6,290,456,548.68 : x
  2. Step 2: Convert to fraction form
    21,212,745,872.36/31,824,523,563.54 = 6,290,456,548.68/x
  3. Step 3: Cross multiply
    21,212,745,872.36x = 31,824,523,563.54 × 6,290,456,548.68
  4. Step 4: Simplify right side
    21,212,745,872.36x = 200,190,782,658,891,186,176
  5. Step 5: Solve for x
    x = 200,190,782,658,891,186,176/21,212,745,872.36
  6. Step 6: Final answer
    x = 9,437,287,556.43

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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.