Finding the Fourth Proportional to 419,399,561.44, 629,252,745.68 and 195,158,203.72
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Solution
The fourth proportional to 419,399,561.44, 629,252,745.68 and 195,158,203.72 is: 292,808,688.48
Step by Step Solution
- Step 1: Write the proportion equation
419,399,561.44 : 629,252,745.68 = 195,158,203.72 : x - Step 2: Convert to fraction form
419,399,561.44/629,252,745.68 = 195,158,203.72/x - Step 3: Cross multiply
419,399,561.44x = 629,252,745.68 × 195,158,203.72 - Step 4: Simplify right side
419,399,561.44x = 122,803,835,532,786,784 - Step 5: Solve for x
x = 122,803,835,532,786,784/419,399,561.44 - Step 6: Final answer
x = 292,808,688.48
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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.