Finding the Fourth Proportional to 123,707,759.49, 170,717,107.01 and 68,703,615.99
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Solution
The fourth proportional to 123,707,759.49, 170,717,107.01 and 68,703,615.99 is: 94,811,211.61
Step by Step Solution
- Step 1: Write the proportion equation
123,707,759.49 : 170,717,107.01 = 68,703,615.99 : x - Step 2: Convert to fraction form
123,707,759.49/170,717,107.01 = 68,703,615.99/x - Step 3: Cross multiply
123,707,759.49x = 170,717,107.01 × 68,703,615.99 - Step 4: Simplify right side
123,707,759.49x = 11,728,882,562,595,258 - Step 5: Solve for x
x = 11,728,882,562,595,258/123,707,759.49 - Step 6: Final answer
x = 94,811,211.61
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1.5x scale
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.