Finding the Fourth Proportional to 400,512,523.39, 552,568,962.18 and 251,844,957.75
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Solution
The fourth proportional to 400,512,523.39, 552,568,962.18 and 251,844,957.75 is: 347,459,065.09
Step by Step Solution
- Step 1: Write the proportion equation
400,512,523.39 : 552,568,962.18 = 251,844,957.75 : x - Step 2: Convert to fraction form
400,512,523.39/552,568,962.18 = 251,844,957.75/x - Step 3: Cross multiply
400,512,523.39x = 552,568,962.18 × 251,844,957.75 - Step 4: Simplify right side
400,512,523.39x = 139,161,706,934,183,440 - Step 5: Solve for x
x = 139,161,706,934,183,440/400,512,523.39 - Step 6: Final answer
x = 347,459,065.09
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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.