Finding the Fourth Proportional to 3,751,790.74, 5,177,733.98 and 2,120,348.88
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Solution
The fourth proportional to 3,751,790.74, 5,177,733.98 and 2,120,348.88 is: 2,926,229.95
Step by Step Solution
- Step 1: Write the proportion equation
3,751,790.74 : 5,177,733.98 = 2,120,348.88 : x - Step 2: Convert to fraction form
3,751,790.74/5,177,733.98 = 2,120,348.88/x - Step 3: Cross multiply
3,751,790.74x = 5,177,733.98 × 2,120,348.88 - Step 4: Simplify right side
3,751,790.74x = 10,978,602,445,430.94 - Step 5: Solve for x
x = 10,978,602,445,430.94/3,751,790.74 - Step 6: Final answer
x = 2,926,229.95
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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.