Finding the Fourth Proportional to 472,394,775.40, 708,592,163.10 and 265,770,514.60
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Solution
The fourth proportional to 472,394,775.40, 708,592,163.10 and 265,770,514.60 is: 398,655,771.90
Step by Step Solution
- Step 1: Write the proportion equation
472,394,775.40 : 708,592,163.10 = 265,770,514.60 : x - Step 2: Convert to fraction form
472,394,775.40/708,592,163.10 = 265,770,514.60/x - Step 3: Cross multiply
472,394,775.40x = 708,592,163.10 × 265,770,514.60 - Step 4: Simplify right side
472,394,775.40x = 188,322,903,828,614,144 - Step 5: Solve for x
x = 188,322,903,828,614,144/472,394,775.40 - Step 6: Final answer
x = 398,655,771.90
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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.