Finding the Fourth Proportional to 512,205,615.68, 768,256,716.72 and 347,268,152.80
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Solution
The fourth proportional to 512,205,615.68, 768,256,716.72 and 347,268,152.80 is: 520,867,172.72
Step by Step Solution
- Step 1: Write the proportion equation
512,205,615.68 : 768,256,716.72 = 347,268,152.80 : x - Step 2: Convert to fraction form
512,205,615.68/768,256,716.72 = 347,268,152.80/x - Step 3: Cross multiply
512,205,615.68x = 768,256,716.72 × 347,268,152.80 - Step 4: Simplify right side
512,205,615.68x = 266,791,090,891,547,296 - Step 5: Solve for x
x = 266,791,090,891,547,296/512,205,615.68 - Step 6: Final answer
x = 520,867,172.72
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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.