Finding the Fourth Proportional to 7,146,122.24, 9,860,538.57 and 4,245,438.56
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Solution
The fourth proportional to 7,146,122.24, 9,860,538.57 and 4,245,438.56 is: 5,858,045.70
Step by Step Solution
- Step 1: Write the proportion equation
7,146,122.24 : 9,860,538.57 = 4,245,438.56 : x - Step 2: Convert to fraction form
7,146,122.24/9,860,538.57 = 4,245,438.56/x - Step 3: Cross multiply
7,146,122.24x = 9,860,538.57 × 4,245,438.56 - Step 4: Simplify right side
7,146,122.24x = 41,862,310,667,445.26 - Step 5: Solve for x
x = 41,862,310,667,445.26/7,146,122.24 - Step 6: Final answer
x = 5,858,045.70
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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.