Finding the Fourth Proportional to 145,152,343.80, 217,728,515.70 and 49,414,231.80
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Solution
The fourth proportional to 145,152,343.80, 217,728,515.70 and 49,414,231.80 is: 74,121,347.70
Step by Step Solution
- Step 1: Write the proportion equation
145,152,343.80 : 217,728,515.70 = 49,414,231.80 : x - Step 2: Convert to fraction form
145,152,343.80/217,728,515.70 = 49,414,231.80/x - Step 3: Cross multiply
145,152,343.80x = 217,728,515.70 × 49,414,231.80 - Step 4: Simplify right side
145,152,343.80x = 10,758,887,344,269,738 - Step 5: Solve for x
x = 10,758,887,344,269,738/145,152,343.80 - Step 6: Final answer
x = 74,121,347.70
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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.