Finding the Fourth Proportional to 6,440,540.40, 8,888,786.64 and 4,155,348.96
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Solution
The fourth proportional to 6,440,540.40, 8,888,786.64 and 4,155,348.96 is: 5,734,924.09
Step by Step Solution
- Step 1: Write the proportion equation
6,440,540.40 : 8,888,786.64 = 4,155,348.96 : x - Step 2: Convert to fraction form
6,440,540.40/8,888,786.64 = 4,155,348.96/x - Step 3: Cross multiply
6,440,540.40x = 8,888,786.64 × 4,155,348.96 - Step 4: Simplify right side
6,440,540.40x = 36,936,010,320,185.90 - Step 5: Solve for x
x = 36,936,010,320,185.90/6,440,540.40 - Step 6: Final answer
x = 5,734,924.09
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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.