Finding the Fourth Proportional to 85,703,683.64, 118,278,377.55 and 48,540,574.92
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Solution
The fourth proportional to 85,703,683.64, 118,278,377.55 and 48,540,574.92 is: 66,990,124.62
Step by Step Solution
- Step 1: Write the proportion equation
85,703,683.64 : 118,278,377.55 = 48,540,574.92 : x - Step 2: Convert to fraction form
85,703,683.64/118,278,377.55 = 48,540,574.92/x - Step 3: Cross multiply
85,703,683.64x = 118,278,377.55 × 48,540,574.92 - Step 4: Simplify right side
85,703,683.64x = 5,741,300,446,881,821 - Step 5: Solve for x
x = 5,741,300,446,881,821/85,703,683.64 - Step 6: Final answer
x = 66,990,124.62
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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.