Finding the Fourth Proportional to 235,845,115.80, 353,767,673.70 and 72,082,555.80
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Solution
The fourth proportional to 235,845,115.80, 353,767,673.70 and 72,082,555.80 is: 108,123,833.70
Step by Step Solution
- Step 1: Write the proportion equation
235,845,115.80 : 353,767,673.70 = 72,082,555.80 : x - Step 2: Convert to fraction form
235,845,115.80/353,767,673.70 = 72,082,555.80/x - Step 3: Cross multiply
235,845,115.80x = 353,767,673.70 × 72,082,555.80 - Step 4: Simplify right side
235,845,115.80x = 25,500,478,079,716,440 - Step 5: Solve for x
x = 25,500,478,079,716,440/235,845,115.80 - Step 6: Final answer
x = 108,123,833.70
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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.