Finding the Fourth Proportional to 11,587,798.41, 15,990,416.87 and 6,431,163.45
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Solution
The fourth proportional to 11,587,798.41, 15,990,416.87 and 6,431,163.45 is: 8,874,592.12
Step by Step Solution
- Step 1: Write the proportion equation
11,587,798.41 : 15,990,416.87 = 6,431,163.45 : x - Step 2: Convert to fraction form
11,587,798.41/15,990,416.87 = 6,431,163.45/x - Step 3: Cross multiply
11,587,798.41x = 15,990,416.87 × 6,431,163.45 - Step 4: Simplify right side
11,587,798.41x = 102,836,984,492,451.59 - Step 5: Solve for x
x = 102,836,984,492,451.59/11,587,798.41 - Step 6: Final answer
x = 8,874,592.12
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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.