Finding the Fourth Proportional to 5,114,863,923.96, 7,058,509,378.38 and 2,887,215,350.52
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Solution
The fourth proportional to 5,114,863,923.96, 7,058,509,378.38 and 2,887,215,350.52 is: 3,984,355,582.48
Step by Step Solution
- Step 1: Write the proportion equation
5,114,863,923.96 : 7,058,509,378.38 = 2,887,215,350.52 : x - Step 2: Convert to fraction form
5,114,863,923.96/7,058,509,378.38 = 2,887,215,350.52/x - Step 3: Cross multiply
5,114,863,923.96x = 7,058,509,378.38 × 2,887,215,350.52 - Step 4: Simplify right side
5,114,863,923.96x = 20,379,436,629,048,119,296 - Step 5: Solve for x
x = 20,379,436,629,048,119,296/5,114,863,923.96 - Step 6: Final answer
x = 3,984,355,582.48
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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.