Home / 281,200,412.44-421,802,019.96-115,294,538.23

Finding the Fourth Proportional to 281,200,412.44, 421,802,019.96 and 115,294,538.23

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Solution

The fourth proportional to 281,200,412.44, 421,802,019.96 and 115,294,538.23 is: 172,942,381.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,200,412.44 : 421,802,019.96 = 115,294,538.23 : x
  2. Step 2: Convert to fraction form
    281,200,412.44/421,802,019.96 = 115,294,538.23/x
  3. Step 3: Cross multiply
    281,200,412.44x = 421,802,019.96 × 115,294,538.23
  4. Step 4: Simplify right side
    281,200,412.44x = 48,631,469,113,660,424
  5. Step 5: Solve for x
    x = 48,631,469,113,660,424/281,200,412.44
  6. Step 6: Final answer
    x = 172,942,381.89

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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.