Finding the Fourth Proportional to 585,928,674.81, 809,252,653.50 and 385,879,814.19
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Solution
The fourth proportional to 585,928,674.81, 809,252,653.50 and 385,879,814.19 is: 532,956,103.69
Step by Step Solution
- Step 1: Write the proportion equation
585,928,674.81 : 809,252,653.50 = 385,879,814.19 : x - Step 2: Convert to fraction form
585,928,674.81/809,252,653.50 = 385,879,814.19/x - Step 3: Cross multiply
585,928,674.81x = 809,252,653.50 × 385,879,814.19 - Step 4: Simplify right side
585,928,674.81x = 312,274,263,565,344,448 - Step 5: Solve for x
x = 312,274,263,565,344,448/585,928,674.81 - Step 6: Final answer
x = 532,956,103.69
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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.