Finding the Fourth Proportional to 135,419,347.46, 186,935,906.41 and 91,425,935.66
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Solution
The fourth proportional to 135,419,347.46, 186,935,906.41 and 91,425,935.66 is: 126,206,413.43
Step by Step Solution
- Step 1: Write the proportion equation
135,419,347.46 : 186,935,906.41 = 91,425,935.66 : x - Step 2: Convert to fraction form
135,419,347.46/186,935,906.41 = 91,425,935.66/x - Step 3: Cross multiply
135,419,347.46x = 186,935,906.41 × 91,425,935.66 - Step 4: Simplify right side
135,419,347.46x = 17,090,790,151,984,440 - Step 5: Solve for x
x = 17,090,790,151,984,440/135,419,347.46 - Step 6: Final answer
x = 126,206,413.43
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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.