Finding the Fourth Proportional to 7,015,153.28, 9,682,529.29 and 4,115,475.68
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Solution
The fourth proportional to 7,015,153.28, 9,682,529.29 and 4,115,475.68 is: 5,680,305.51
Step by Step Solution
- Step 1: Write the proportion equation
7,015,153.28 : 9,682,529.29 = 4,115,475.68 : x - Step 2: Convert to fraction form
7,015,153.28/9,682,529.29 = 4,115,475.68/x - Step 3: Cross multiply
7,015,153.28x = 9,682,529.29 × 4,115,475.68 - Step 4: Simplify right side
7,015,153.28x = 39,848,213,813,882.66 - Step 5: Solve for x
x = 39,848,213,813,882.66/7,015,153.28 - Step 6: Final answer
x = 5,680,305.51
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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.