Finding the Fourth Proportional to 202,723,765.50, 279,989,743.60 and 137,420,295.42
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Solution
The fourth proportional to 202,723,765.50, 279,989,743.60 and 137,420,295.42 is: 189,796,559.79
Step by Step Solution
- Step 1: Write the proportion equation
202,723,765.50 : 279,989,743.60 = 137,420,295.42 : x - Step 2: Convert to fraction form
202,723,765.50/279,989,743.60 = 137,420,295.42/x - Step 3: Cross multiply
202,723,765.50x = 279,989,743.60 × 137,420,295.42 - Step 4: Simplify right side
202,723,765.50x = 38,476,273,280,082,056 - Step 5: Solve for x
x = 38,476,273,280,082,056/202,723,765.50 - Step 6: Final answer
x = 189,796,559.79
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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.