Finding the Fourth Proportional to 68,707,118.09, 94,816,019.63 and 39,338,901.11
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Solution
The fourth proportional to 68,707,118.09, 94,816,019.63 and 39,338,901.11 is: 54,287,796.13
Step by Step Solution
- Step 1: Write the proportion equation
68,707,118.09 : 94,816,019.63 = 39,338,901.11 : x - Step 2: Convert to fraction form
68,707,118.09/94,816,019.63 = 39,338,901.11/x - Step 3: Cross multiply
68,707,118.09x = 94,816,019.63 × 39,338,901.11 - Step 4: Simplify right side
68,707,118.09x = 3,729,958,019,868,388.50 - Step 5: Solve for x
x = 3,729,958,019,868,388.50/68,707,118.09 - Step 6: Final answer
x = 54,287,796.13
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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.