Finding the Fourth Proportional to 165,969,982.80, 248,954,974.20 and 161,187,013.80
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Solution
The fourth proportional to 165,969,982.80, 248,954,974.20 and 161,187,013.80 is: 241,780,520.70
Step by Step Solution
- Step 1: Write the proportion equation
165,969,982.80 : 248,954,974.20 = 161,187,013.80 : x - Step 2: Convert to fraction form
165,969,982.80/248,954,974.20 = 161,187,013.80/x - Step 3: Cross multiply
165,969,982.80x = 248,954,974.20 × 161,187,013.80 - Step 4: Simplify right side
165,969,982.80x = 40,128,308,861,954,048 - Step 5: Solve for x
x = 40,128,308,861,954,048/165,969,982.80 - Step 6: Final answer
x = 241,780,520.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.