Finding the Fourth Proportional to 7,990,957,818.72, 11,987,585,231.04 and 2,470,646,317.68
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Solution
The fourth proportional to 7,990,957,818.72, 11,987,585,231.04 and 2,470,646,317.68 is: 3,706,324,570.95
Step by Step Solution
- Step 1: Write the proportion equation
7,990,957,818.72 : 11,987,585,231.04 = 2,470,646,317.68 : x - Step 2: Convert to fraction form
7,990,957,818.72/11,987,585,231.04 = 2,470,646,317.68/x - Step 3: Cross multiply
7,990,957,818.72x = 11,987,585,231.04 × 2,470,646,317.68 - Step 4: Simplify right side
7,990,957,818.72x = 29,617,083,308,944,130,048 - Step 5: Solve for x
x = 29,617,083,308,944,130,048/7,990,957,818.72 - Step 6: Final answer
x = 3,706,324,570.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.