Finding the Fourth Proportional to 129,295,232.76, 178,431,211.11 and 70,561,674.26
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Solution
The fourth proportional to 129,295,232.76, 178,431,211.11 and 70,561,674.26 is: 97,377,178.78
Step by Step Solution
- Step 1: Write the proportion equation
129,295,232.76 : 178,431,211.11 = 70,561,674.26 : x - Step 2: Convert to fraction form
129,295,232.76/178,431,211.11 = 70,561,674.26/x - Step 3: Cross multiply
129,295,232.76x = 178,431,211.11 × 70,561,674.26 - Step 4: Simplify right side
129,295,232.76x = 12,590,404,996,161,114 - Step 5: Solve for x
x = 12,590,404,996,161,114/129,295,232.76 - Step 6: Final answer
x = 97,377,178.78
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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.