Finding the Fourth Proportional to 261,673,245.87, 361,111,467.42 and 144,202,790.94
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Solution
The fourth proportional to 261,673,245.87, 361,111,467.42 and 144,202,790.94 is: 199,001,167.54
Step by Step Solution
- Step 1: Write the proportion equation
261,673,245.87 : 361,111,467.42 = 144,202,790.94 : x - Step 2: Convert to fraction form
261,673,245.87/361,111,467.42 = 144,202,790.94/x - Step 3: Cross multiply
261,673,245.87x = 361,111,467.42 × 144,202,790.94 - Step 4: Simplify right side
261,673,245.87x = 52,073,281,442,402,880 - Step 5: Solve for x
x = 52,073,281,442,402,880/261,673,245.87 - Step 6: Final answer
x = 199,001,167.54
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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.