Finding the Fourth Proportional to 260,248,911.40, 389,617,539.90 and 252,690,639.40
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Solution
The fourth proportional to 260,248,911.40, 389,617,539.90 and 252,690,639.40 is: 378,302,082.99
Step by Step Solution
- Step 1: Write the proportion equation
260,248,911.40 : 389,617,539.90 = 252,690,639.40 : x - Step 2: Convert to fraction form
260,248,911.40/389,617,539.90 = 252,690,639.40/x - Step 3: Cross multiply
260,248,911.40x = 389,617,539.90 × 252,690,639.40 - Step 4: Simplify right side
260,248,911.40x = 98,452,705,278,786,016 - Step 5: Solve for x
x = 98,452,705,278,786,016/260,248,911.40 - Step 6: Final answer
x = 378,302,082.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.