Finding the Fourth Proportional to 144,512,163.07, 199,426,982.22 and 78,432,662.05
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Solution
The fourth proportional to 144,512,163.07, 199,426,982.22 and 78,432,662.05 is: 108,237,180.65
Step by Step Solution
- Step 1: Write the proportion equation
144,512,163.07 : 199,426,982.22 = 78,432,662.05 : x - Step 2: Convert to fraction form
144,512,163.07/199,426,982.22 = 78,432,662.05/x - Step 3: Cross multiply
144,512,163.07x = 199,426,982.22 × 78,432,662.05 - Step 4: Simplify right side
144,512,163.07x = 15,641,589,100,112,618 - Step 5: Solve for x
x = 15,641,589,100,112,618/144,512,163.07 - Step 6: Final answer
x = 108,237,180.65
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.