Finding the Fourth Proportional to 7,081,878.40, 10,608,820.80 and 3,881,276.80
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Solution
The fourth proportional to 7,081,878.40, 10,608,820.80 and 3,881,276.80 is: 5,814,244.15
Step by Step Solution
- Step 1: Write the proportion equation
7,081,878.40 : 10,608,820.80 = 3,881,276.80 : x - Step 2: Convert to fraction form
7,081,878.40/10,608,820.80 = 3,881,276.80/x - Step 3: Cross multiply
7,081,878.40x = 10,608,820.80 × 3,881,276.80 - Step 4: Simplify right side
7,081,878.40x = 41,175,770,046,397.44 - Step 5: Solve for x
x = 41,175,770,046,397.44/7,081,878.40 - Step 6: Final answer
x = 5,814,244.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.