Finding the Fourth Proportional to 629,453,382.99, 868,648,369.08 and 343,351,144.05
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Solution
The fourth proportional to 629,453,382.99, 868,648,369.08 and 343,351,144.05 is: 473,826,051.87
Step by Step Solution
- Step 1: Write the proportion equation
629,453,382.99 : 868,648,369.08 = 343,351,144.05 : x - Step 2: Convert to fraction form
629,453,382.99/868,648,369.08 = 343,351,144.05/x - Step 3: Cross multiply
629,453,382.99x = 868,648,369.08 × 343,351,144.05 - Step 4: Simplify right side
629,453,382.99x = 298,251,411,300,784,640 - Step 5: Solve for x
x = 298,251,411,300,784,640/629,453,382.99 - Step 6: Final answer
x = 473,826,051.87
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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.