Finding the Fourth Proportional to 8,628,153.86, 12,932,397.18 and 5,391,186.09
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Solution
The fourth proportional to 8,628,153.86, 12,932,397.18 and 5,391,186.09 is: 8,080,634.74
Step by Step Solution
- Step 1: Write the proportion equation
8,628,153.86 : 12,932,397.18 = 5,391,186.09 : x - Step 2: Convert to fraction form
8,628,153.86/12,932,397.18 = 5,391,186.09/x - Step 3: Cross multiply
8,628,153.86x = 12,932,397.18 × 5,391,186.09 - Step 4: Simplify right side
8,628,153.86x = 69,720,959,855,884.66 - Step 5: Solve for x
x = 69,720,959,855,884.66/8,628,153.86 - Step 6: Final answer
x = 8,080,634.74
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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.