Finding the Fourth Proportional to 146,782,972.20, 220,174,458.30 and 44,546,845.80
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Solution
The fourth proportional to 146,782,972.20, 220,174,458.30 and 44,546,845.80 is: 66,820,268.70
Step by Step Solution
- Step 1: Write the proportion equation
146,782,972.20 : 220,174,458.30 = 44,546,845.80 : x - Step 2: Convert to fraction form
146,782,972.20/220,174,458.30 = 44,546,845.80/x - Step 3: Cross multiply
146,782,972.20x = 220,174,458.30 × 44,546,845.80 - Step 4: Simplify right side
146,782,972.20x = 9,808,077,642,988,630 - Step 5: Solve for x
x = 9,808,077,642,988,630/146,782,972.20 - Step 6: Final answer
x = 66,820,268.70
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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.