Finding the Fourth Proportional to 85,703,727.09, 118,278,437.48 and 48,540,618.38
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Solution
The fourth proportional to 85,703,727.09, 118,278,437.48 and 48,540,618.38 is: 66,990,184.56
Step by Step Solution
- Step 1: Write the proportion equation
85,703,727.09 : 118,278,437.48 = 48,540,618.38 : x - Step 2: Convert to fraction form
85,703,727.09/118,278,437.48 = 48,540,618.38/x - Step 3: Cross multiply
85,703,727.09x = 118,278,437.48 × 48,540,618.38 - Step 4: Simplify right side
85,703,727.09x = 5,741,308,495,465,273 - Step 5: Solve for x
x = 5,741,308,495,465,273/85,703,727.09 - Step 6: Final answer
x = 66,990,184.56
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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.