Finding the Fourth Proportional to 85,703,743.50, 118,278,460.07 and 48,540,634.75
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Solution
The fourth proportional to 85,703,743.50, 118,278,460.07 and 48,540,634.75 is: 66,990,207.13
Step by Step Solution
- Step 1: Write the proportion equation
85,703,743.50 : 118,278,460.07 = 48,540,634.75 : x - Step 2: Convert to fraction form
85,703,743.50/118,278,460.07 = 48,540,634.75/x - Step 3: Cross multiply
85,703,743.50x = 118,278,460.07 × 48,540,634.75 - Step 4: Simplify right side
85,703,743.50x = 5,741,311,529,050,329 - Step 5: Solve for x
x = 5,741,311,529,050,329/85,703,743.50 - Step 6: Final answer
x = 66,990,207.13
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1.5x scale
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.