Finding the Fourth Proportional to 81,351,270.63, 112,266,945.99 and 47,863,087.38
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Solution
The fourth proportional to 81,351,270.63, 112,266,945.99 and 47,863,087.38 is: 66,052,350.56
Step by Step Solution
- Step 1: Write the proportion equation
81,351,270.63 : 112,266,945.99 = 47,863,087.38 : x - Step 2: Convert to fraction form
81,351,270.63/112,266,945.99 = 47,863,087.38/x - Step 3: Cross multiply
81,351,270.63x = 112,266,945.99 × 47,863,087.38 - Step 4: Simplify right side
81,351,270.63x = 5,373,442,645,805,111 - Step 5: Solve for x
x = 5,373,442,645,805,111/81,351,270.63 - Step 6: Final answer
x = 66,052,350.56
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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.