Finding the Fourth Proportional to 11,505,687.84, 15,877,749.29 and 6,278,799.42
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Solution
The fourth proportional to 11,505,687.84, 15,877,749.29 and 6,278,799.42 is: 8,664,688.66
Step by Step Solution
- Step 1: Write the proportion equation
11,505,687.84 : 15,877,749.29 = 6,278,799.42 : x - Step 2: Convert to fraction form
11,505,687.84/15,877,749.29 = 6,278,799.42/x - Step 3: Cross multiply
11,505,687.84x = 15,877,749.29 × 6,278,799.42 - Step 4: Simplify right side
11,505,687.84x = 99,693,203,001,563.42 - Step 5: Solve for x
x = 99,693,203,001,563.42/11,505,687.84 - Step 6: Final answer
x = 8,664,688.66
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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.