Finding the Fourth Proportional to 154,247,250.47, 212,861,609.92 and 83,682,857.05
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Solution
The fourth proportional to 154,247,250.47, 212,861,609.92 and 83,682,857.05 is: 115,482,562.05
Step by Step Solution
- Step 1: Write the proportion equation
154,247,250.47 : 212,861,609.92 = 83,682,857.05 : x - Step 2: Convert to fraction form
154,247,250.47/212,861,609.92 = 83,682,857.05/x - Step 3: Cross multiply
154,247,250.47x = 212,861,609.92 × 83,682,857.05 - Step 4: Simplify right side
154,247,250.47x = 17,812,867,673,626,860 - Step 5: Solve for x
x = 17,812,867,673,626,860/154,247,250.47 - Step 6: Final answer
x = 115,482,562.05
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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.