Finding the Fourth Proportional to 11,508,145.96, 15,881,163.18 and 6,351,507.40
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Solution
The fourth proportional to 11,508,145.96, 15,881,163.18 and 6,351,507.40 is: 8,765,037.03
Step by Step Solution
- Step 1: Write the proportion equation
11,508,145.96 : 15,881,163.18 = 6,351,507.40 : x - Step 2: Convert to fraction form
11,508,145.96/15,881,163.18 = 6,351,507.40/x - Step 3: Cross multiply
11,508,145.96x = 15,881,163.18 × 6,351,507.40 - Step 4: Simplify right side
11,508,145.96x = 100,869,325,458,377.53 - Step 5: Solve for x
x = 100,869,325,458,377.53/11,508,145.96 - Step 6: Final answer
x = 8,765,037.03
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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.