Finding the Fourth Proportional to 373,497,134.37, 515,469,762.45 and 310,662,375.36
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Solution
The fourth proportional to 373,497,134.37, 515,469,762.45 and 310,662,375.36 is: 428,750,440.35
Step by Step Solution
- Step 1: Write the proportion equation
373,497,134.37 : 515,469,762.45 = 310,662,375.36 : x - Step 2: Convert to fraction form
373,497,134.37/515,469,762.45 = 310,662,375.36/x - Step 3: Cross multiply
373,497,134.37x = 515,469,762.45 × 310,662,375.36 - Step 4: Simplify right side
373,497,134.37x = 160,137,060,828,971,936 - Step 5: Solve for x
x = 160,137,060,828,971,936/373,497,134.37 - Step 6: Final answer
x = 428,750,440.35
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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.