Finding the Fourth Proportional to 130,599,642.82, 180,222,103.60 and 71,061,183.99
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Solution
The fourth proportional to 130,599,642.82, 180,222,103.60 and 71,061,183.99 is: 98,061,493.78
Step by Step Solution
- Step 1: Write the proportion equation
130,599,642.82 : 180,222,103.60 = 71,061,183.99 : x - Step 2: Convert to fraction form
130,599,642.82/180,222,103.60 = 71,061,183.99/x - Step 3: Cross multiply
130,599,642.82x = 180,222,103.60 × 71,061,183.99 - Step 4: Simplify right side
130,599,642.82x = 12,806,796,062,083,330 - Step 5: Solve for x
x = 12,806,796,062,083,330/130,599,642.82 - Step 6: Final answer
x = 98,061,493.78
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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.