Finding the Fourth Proportional to 644,719,746.26, 889,716,262.80 and 366,276,548.72
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Solution
The fourth proportional to 644,719,746.26, 889,716,262.80 and 366,276,548.72 is: 505,463,348.95
Step by Step Solution
- Step 1: Write the proportion equation
644,719,746.26 : 889,716,262.80 = 366,276,548.72 : x - Step 2: Convert to fraction form
644,719,746.26/889,716,262.80 = 366,276,548.72/x - Step 3: Cross multiply
644,719,746.26x = 889,716,262.80 × 366,276,548.72 - Step 4: Simplify right side
644,719,746.26x = 325,882,202,073,991,872 - Step 5: Solve for x
x = 325,882,202,073,991,872/644,719,746.26 - Step 6: Final answer
x = 505,463,348.95
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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.