Finding the Fourth Proportional to 68,263,481.80, 102,395,222.70 and 65,618,086.60
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Solution
The fourth proportional to 68,263,481.80, 102,395,222.70 and 65,618,086.60 is: 98,427,129.90
Step by Step Solution
- Step 1: Write the proportion equation
68,263,481.80 : 102,395,222.70 = 65,618,086.60 : x - Step 2: Convert to fraction form
68,263,481.80/102,395,222.70 = 65,618,086.60/x - Step 3: Cross multiply
68,263,481.80x = 102,395,222.70 × 65,618,086.60 - Step 4: Simplify right side
68,263,481.80x = 6,718,978,590,554,886 - Step 5: Solve for x
x = 6,718,978,590,554,886/68,263,481.80 - Step 6: Final answer
x = 98,427,129.90
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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.