Finding the Fourth Proportional to 8,375,850.51, 12,574,406.64 and 7,121,649.75
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Solution
The fourth proportional to 8,375,850.51, 12,574,406.64 and 7,121,649.75 is: 10,691,513.63
Step by Step Solution
- Step 1: Write the proportion equation
8,375,850.51 : 12,574,406.64 = 7,121,649.75 : x - Step 2: Convert to fraction form
8,375,850.51/12,574,406.64 = 7,121,649.75/x - Step 3: Cross multiply
8,375,850.51x = 12,574,406.64 × 7,121,649.75 - Step 4: Simplify right side
8,375,850.51x = 89,550,519,914,387.91 - Step 5: Solve for x
x = 89,550,519,914,387.91/8,375,850.51 - Step 6: Final answer
x = 10,691,513.63
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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.