Finding the Fourth Proportional to 385,202,709.80, 531,582,743.49 and 226,390,183.73
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Solution
The fourth proportional to 385,202,709.80, 531,582,743.49 and 226,390,183.73 is: 312,420,219.03
Step by Step Solution
- Step 1: Write the proportion equation
385,202,709.80 : 531,582,743.49 = 226,390,183.73 : x - Step 2: Convert to fraction form
385,202,709.80/531,582,743.49 = 226,390,183.73/x - Step 3: Cross multiply
385,202,709.80x = 531,582,743.49 × 226,390,183.73 - Step 4: Simplify right side
385,202,709.80x = 120,345,114,966,398,560 - Step 5: Solve for x
x = 120,345,114,966,398,560/385,202,709.80 - Step 6: Final answer
x = 312,420,219.03
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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.