Finding the Fourth Proportional to 193,471,243.70, 290,206,865.55 and 155,207,491.70
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Solution
The fourth proportional to 193,471,243.70, 290,206,865.55 and 155,207,491.70 is: 232,811,237.55
Step by Step Solution
- Step 1: Write the proportion equation
193,471,243.70 : 290,206,865.55 = 155,207,491.70 : x - Step 2: Convert to fraction form
193,471,243.70/290,206,865.55 = 155,207,491.70/x - Step 3: Cross multiply
193,471,243.70x = 290,206,865.55 × 155,207,491.70 - Step 4: Simplify right side
193,471,243.70x = 45,042,279,676,134,640 - Step 5: Solve for x
x = 45,042,279,676,134,640/193,471,243.70 - Step 6: Final answer
x = 232,811,237.55
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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.