Finding the Fourth Proportional to 68,707,117.09, 94,816,018.25 and 39,338,900.11
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Solution
The fourth proportional to 68,707,117.09, 94,816,018.25 and 39,338,900.11 is: 54,287,794.75
Step by Step Solution
- Step 1: Write the proportion equation
68,707,117.09 : 94,816,018.25 = 39,338,900.11 : x - Step 2: Convert to fraction form
68,707,117.09/94,816,018.25 = 39,338,900.11/x - Step 3: Cross multiply
68,707,117.09x = 94,816,018.25 × 39,338,900.11 - Step 4: Simplify right side
68,707,117.09x = 3,729,957,870,764,687 - Step 5: Solve for x
x = 3,729,957,870,764,687/68,707,117.09 - Step 6: Final answer
x = 54,287,794.75
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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.