Finding the Fourth Proportional to 5,237,882.51, 7,228,907.06 and 3,172,837.53
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Solution
The fourth proportional to 5,237,882.51, 7,228,907.06 and 3,172,837.53 is: 4,378,896.93
Step by Step Solution
- Step 1: Write the proportion equation
5,237,882.51 : 7,228,907.06 = 3,172,837.53 : x - Step 2: Convert to fraction form
5,237,882.51/7,228,907.06 = 3,172,837.53/x - Step 3: Cross multiply
5,237,882.51x = 7,228,907.06 × 3,172,837.53 - Step 4: Simplify right side
5,237,882.51x = 22,936,147,620,849.96 - Step 5: Solve for x
x = 22,936,147,620,849.96/5,237,882.51 - Step 6: Final answer
x = 4,378,896.93
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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.