Finding the Fourth Proportional to 220,174,540.80, 330,261,811.20 and 66,820,351.20
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Solution
The fourth proportional to 220,174,540.80, 330,261,811.20 and 66,820,351.20 is: 100,230,526.80
Step by Step Solution
- Step 1: Write the proportion equation
220,174,540.80 : 330,261,811.20 = 66,820,351.20 : x - Step 2: Convert to fraction form
220,174,540.80/330,261,811.20 = 66,820,351.20/x - Step 3: Cross multiply
220,174,540.80x = 330,261,811.20 × 66,820,351.20 - Step 4: Simplify right side
220,174,540.80x = 22,068,210,212,332,092 - Step 5: Solve for x
x = 22,068,210,212,332,092/220,174,540.80 - Step 6: Final answer
x = 100,230,526.80
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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.