Finding the Fourth Proportional to 393,660,832.94, 543,268,453.56 and 226,397,224.76
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Solution
The fourth proportional to 393,660,832.94, 543,268,453.56 and 226,397,224.76 is: 312,437,661.80
Step by Step Solution
- Step 1: Write the proportion equation
393,660,832.94 : 543,268,453.56 = 226,397,224.76 : x - Step 2: Convert to fraction form
393,660,832.94/543,268,453.56 = 226,397,224.76/x - Step 3: Cross multiply
393,660,832.94x = 543,268,453.56 × 226,397,224.76 - Step 4: Simplify right side
393,660,832.94x = 122,994,470,182,924,592 - Step 5: Solve for x
x = 122,994,470,182,924,592/393,660,832.94 - Step 6: Final answer
x = 312,437,661.80
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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.