Finding the Fourth Proportional to 3,878,181.15, 5,352,471.84 and 2,946,355.53
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Solution
The fourth proportional to 3,878,181.15, 5,352,471.84 and 2,946,355.53 is: 4,066,412.68
Step by Step Solution
- Step 1: Write the proportion equation
3,878,181.15 : 5,352,471.84 = 2,946,355.53 : x - Step 2: Convert to fraction form
3,878,181.15/5,352,471.84 = 2,946,355.53/x - Step 3: Cross multiply
3,878,181.15x = 5,352,471.84 × 2,946,355.53 - Step 4: Simplify right side
3,878,181.15x = 15,770,285,020,375.99 - Step 5: Solve for x
x = 15,770,285,020,375.99/3,878,181.15 - Step 6: Final answer
x = 4,066,412.68
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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.