Finding the Fourth Proportional to 78,894,163.40, 118,341,245.10 and 44,456,786.60
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Solution
The fourth proportional to 78,894,163.40, 118,341,245.10 and 44,456,786.60 is: 66,685,179.90
Step by Step Solution
- Step 1: Write the proportion equation
78,894,163.40 : 118,341,245.10 = 44,456,786.60 : x - Step 2: Convert to fraction form
78,894,163.40/118,341,245.10 = 44,456,786.60/x - Step 3: Cross multiply
78,894,163.40x = 118,341,245.10 × 44,456,786.60 - Step 4: Simplify right side
78,894,163.40x = 5,261,071,479,388,996 - Step 5: Solve for x
x = 5,261,071,479,388,996/78,894,163.40 - Step 6: Final answer
x = 66,685,179.90
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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.