Finding the Fourth Proportional to 403,603,163.62, 556,972,344.42 and 217,964,161.42
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Solution
The fourth proportional to 403,603,163.62, 556,972,344.42 and 217,964,161.42 is: 300,790,531.22
Step by Step Solution
- Step 1: Write the proportion equation
403,603,163.62 : 556,972,344.42 = 217,964,161.42 : x - Step 2: Convert to fraction form
403,603,163.62/556,972,344.42 = 217,964,161.42/x - Step 3: Cross multiply
403,603,163.62x = 556,972,344.42 × 217,964,161.42 - Step 4: Simplify right side
403,603,163.62x = 121,400,009,985,636,704 - Step 5: Solve for x
x = 121,400,009,985,636,704/403,603,163.62 - Step 6: Final answer
x = 300,790,531.22
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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.