Finding the Fourth Proportional to 505,512,189.20, 758,268,283.80 and 437,487,741.20
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Solution
The fourth proportional to 505,512,189.20, 758,268,283.80 and 437,487,741.20 is: 656,231,611.80
Step by Step Solution
- Step 1: Write the proportion equation
505,512,189.20 : 758,268,283.80 = 437,487,741.20 : x - Step 2: Convert to fraction form
505,512,189.20/758,268,283.80 = 437,487,741.20/x - Step 3: Cross multiply
505,512,189.20x = 758,268,283.80 × 437,487,741.20 - Step 4: Simplify right side
505,512,189.20x = 331,733,078,703,262,528 - Step 5: Solve for x
x = 331,733,078,703,262,528/505,512,189.20 - Step 6: Final answer
x = 656,231,611.80
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Similar ratio
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1.5x scale
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.