Finding the Fourth Proportional to 11,571,173.48, 17,356,907.84 and 7,975,975.12
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Solution
The fourth proportional to 11,571,173.48, 17,356,907.84 and 7,975,975.12 is: 11,964,064.43
Step by Step Solution
- Step 1: Write the proportion equation
11,571,173.48 : 17,356,907.84 = 7,975,975.12 : x - Step 2: Convert to fraction form
11,571,173.48/17,356,907.84 = 7,975,975.12/x - Step 3: Cross multiply
11,571,173.48x = 17,356,907.84 × 7,975,975.12 - Step 4: Simplify right side
11,571,173.48x = 138,438,265,091,972.94 - Step 5: Solve for x
x = 138,438,265,091,972.94/11,571,173.48 - Step 6: Final answer
x = 11,964,064.43
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.