Finding the Fourth Proportional to 143,491,163.54, 198,005,173.86 and 79,906,699.08
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Solution
The fourth proportional to 143,491,163.54, 198,005,173.86 and 79,906,699.08 is: 110,264,210.38
Step by Step Solution
- Step 1: Write the proportion equation
143,491,163.54 : 198,005,173.86 = 79,906,699.08 : x - Step 2: Convert to fraction form
143,491,163.54/198,005,173.86 = 79,906,699.08/x - Step 3: Cross multiply
143,491,163.54x = 198,005,173.86 × 79,906,699.08 - Step 4: Simplify right side
143,491,163.54x = 15,821,939,843,914,102 - Step 5: Solve for x
x = 15,821,939,843,914,102/143,491,163.54 - Step 6: Final answer
x = 110,264,210.38
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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.