Finding the Fourth Proportional to 315,040,363.20, 472,560,544.80 and 271,958,212.80
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Solution
The fourth proportional to 315,040,363.20, 472,560,544.80 and 271,958,212.80 is: 407,937,319.20
Step by Step Solution
- Step 1: Write the proportion equation
315,040,363.20 : 472,560,544.80 = 271,958,212.80 : x - Step 2: Convert to fraction form
315,040,363.20/472,560,544.80 = 271,958,212.80/x - Step 3: Cross multiply
315,040,363.20x = 472,560,544.80 × 271,958,212.80 - Step 4: Simplify right side
315,040,363.20x = 128,516,721,203,602,336 - Step 5: Solve for x
x = 128,516,721,203,602,336/315,040,363.20 - Step 6: Final answer
x = 407,937,319.20
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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.