Finding the Fourth Proportional to 207,368,013.70, 311,052,020.56 and 71,008,077.70
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Solution
The fourth proportional to 207,368,013.70, 311,052,020.56 and 71,008,077.70 is: 106,512,116.55
Step by Step Solution
- Step 1: Write the proportion equation
207,368,013.70 : 311,052,020.56 = 71,008,077.70 : x - Step 2: Convert to fraction form
207,368,013.70/311,052,020.56 = 71,008,077.70/x - Step 3: Cross multiply
207,368,013.70x = 311,052,020.56 × 71,008,077.70 - Step 4: Simplify right side
207,368,013.70x = 22,087,206,044,666,480 - Step 5: Solve for x
x = 22,087,206,044,666,480/207,368,013.70 - Step 6: Final answer
x = 106,512,116.55
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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.