Finding the Fourth Proportional to 68,362,608.09, 94,334,412.70 and 38,591,615.42
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Solution
The fourth proportional to 68,362,608.09, 94,334,412.70 and 38,591,615.42 is: 53,253,049.84
Step by Step Solution
- Step 1: Write the proportion equation
68,362,608.09 : 94,334,412.70 = 38,591,615.42 : x - Step 2: Convert to fraction form
68,362,608.09/94,334,412.70 = 38,591,615.42/x - Step 3: Cross multiply
68,362,608.09x = 94,334,412.70 × 38,591,615.42 - Step 4: Simplify right side
68,362,608.09x = 3,640,517,376,094,262 - Step 5: Solve for x
x = 3,640,517,376,094,262/68,362,608.09 - Step 6: Final answer
x = 53,253,049.84
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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.