Finding the Fourth Proportional to 8,242,851.42, 11,361,996.09 and 6,497,676.72
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Solution
The fourth proportional to 8,242,851.42, 11,361,996.09 and 6,497,676.72 is: 8,956,436.76
Step by Step Solution
- Step 1: Write the proportion equation
8,242,851.42 : 11,361,996.09 = 6,497,676.72 : x - Step 2: Convert to fraction form
8,242,851.42/11,361,996.09 = 6,497,676.72/x - Step 3: Cross multiply
8,242,851.42x = 11,361,996.09 × 6,497,676.72 - Step 4: Simplify right side
8,242,851.42x = 73,826,577,486,724.02 - Step 5: Solve for x
x = 73,826,577,486,724.02/8,242,851.42 - Step 6: Final answer
x = 8,956,436.76
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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.