Home / 198,971,669.67-274,581,993.44-115,389,356.43

Finding the Fourth Proportional to 198,971,669.67, 274,581,993.44 and 115,389,356.43

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Solution

The fourth proportional to 198,971,669.67, 274,581,993.44 and 115,389,356.43 is: 159,237,943.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,971,669.67 : 274,581,993.44 = 115,389,356.43 : x
  2. Step 2: Convert to fraction form
    198,971,669.67/274,581,993.44 = 115,389,356.43/x
  3. Step 3: Cross multiply
    198,971,669.67x = 274,581,993.44 × 115,389,356.43
  4. Step 4: Simplify right side
    198,971,669.67x = 31,683,839,509,731,136
  5. Step 5: Solve for x
    x = 31,683,839,509,731,136/198,971,669.67
  6. Step 6: Final answer
    x = 159,237,943.58

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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.