Finding the Fourth Proportional to 629,453,373.99, 868,648,356.66 and 343,351,135.05
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Solution
The fourth proportional to 629,453,373.99, 868,648,356.66 and 343,351,135.05 is: 473,826,039.45
Step by Step Solution
- Step 1: Write the proportion equation
629,453,373.99 : 868,648,356.66 = 343,351,135.05 : x - Step 2: Convert to fraction form
629,453,373.99/868,648,356.66 = 343,351,135.05/x - Step 3: Cross multiply
629,453,373.99x = 868,648,356.66 × 343,351,135.05 - Step 4: Simplify right side
629,453,373.99x = 298,251,399,218,528,256 - Step 5: Solve for x
x = 298,251,399,218,528,256/629,453,373.99 - Step 6: Final answer
x = 473,826,039.45
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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.