Finding the Fourth Proportional to 85,703,720.99, 118,278,429.05 and 48,540,612.29
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Solution
The fourth proportional to 85,703,720.99, 118,278,429.05 and 48,540,612.29 is: 66,990,176.16
Step by Step Solution
- Step 1: Write the proportion equation
85,703,720.99 : 118,278,429.05 = 48,540,612.29 : x - Step 2: Convert to fraction form
85,703,720.99/118,278,429.05 = 48,540,612.29/x - Step 3: Cross multiply
85,703,720.99x = 118,278,429.05 × 48,540,612.29 - Step 4: Simplify right side
85,703,720.99x = 5,741,307,367,203,370 - Step 5: Solve for x
x = 5,741,307,367,203,370/85,703,720.99 - Step 6: Final answer
x = 66,990,176.16
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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.