Finding the Fourth Proportional to 303,668,585.74, 455,311,472.37 and 257,626,578.70
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Solution
The fourth proportional to 303,668,585.74, 455,311,472.37 and 257,626,578.70 is: 386,277,482.68
Step by Step Solution
- Step 1: Write the proportion equation
303,668,585.74 : 455,311,472.37 = 257,626,578.70 : x - Step 2: Convert to fraction form
303,668,585.74/455,311,472.37 = 257,626,578.70/x - Step 3: Cross multiply
303,668,585.74x = 455,311,472.37 × 257,626,578.70 - Step 4: Simplify right side
303,668,585.74x = 117,300,336,869,542,672 - Step 5: Solve for x
x = 117,300,336,869,542,672/303,668,585.74 - Step 6: Final answer
x = 386,277,482.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.