Finding the Fourth Proportional to 7,190,647,161.75, 10,785,970,742.63 and 2,020,789,113.75
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Solution
The fourth proportional to 7,190,647,161.75, 10,785,970,742.63 and 2,020,789,113.75 is: 3,031,183,670.63
Step by Step Solution
- Step 1: Write the proportion equation
7,190,647,161.75 : 10,785,970,742.63 = 2,020,789,113.75 : x - Step 2: Convert to fraction form
7,190,647,161.75/10,785,970,742.63 = 2,020,789,113.75/x - Step 3: Cross multiply
7,190,647,161.75x = 10,785,970,742.63 × 2,020,789,113.75 - Step 4: Simplify right side
7,190,647,161.75x = 21,796,172,257,922,605,056 - Step 5: Solve for x
x = 21,796,172,257,922,605,056/7,190,647,161.75 - Step 6: Final answer
x = 3,031,183,670.63
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1.5x scale
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.