Finding the Fourth Proportional to 414,048,562.60, 621,072,843.90 and 405,986,405.80
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Solution
The fourth proportional to 414,048,562.60, 621,072,843.90 and 405,986,405.80 is: 608,979,608.70
Step by Step Solution
- Step 1: Write the proportion equation
414,048,562.60 : 621,072,843.90 = 405,986,405.80 : x - Step 2: Convert to fraction form
414,048,562.60/621,072,843.90 = 405,986,405.80/x - Step 3: Cross multiply
414,048,562.60x = 621,072,843.90 × 405,986,405.80 - Step 4: Simplify right side
414,048,562.60x = 252,147,131,634,945,440 - Step 5: Solve for x
x = 252,147,131,634,945,440/414,048,562.60 - Step 6: Final answer
x = 608,979,608.70
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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.