Finding the Fourth Proportional to 5,052,076.80, 6,971,531.40 and 2,876,842.32
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Solution
The fourth proportional to 5,052,076.80, 6,971,531.40 and 2,876,842.32 is: 3,969,851.88
Step by Step Solution
- Step 1: Write the proportion equation
5,052,076.80 : 6,971,531.40 = 2,876,842.32 : x - Step 2: Convert to fraction form
5,052,076.80/6,971,531.40 = 2,876,842.32/x - Step 3: Cross multiply
5,052,076.80x = 6,971,531.40 × 2,876,842.32 - Step 4: Simplify right side
5,052,076.80x = 20,055,996,566,728.85 - Step 5: Solve for x
x = 20,055,996,566,728.85/5,052,076.80 - Step 6: Final answer
x = 3,969,851.88
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1.5x scale
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.