Finding the Fourth Proportional to 21,762,261.20, 32,644,620.60 and 6,616,686.80
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Solution
The fourth proportional to 21,762,261.20, 32,644,620.60 and 6,616,686.80 is: 9,925,403.81
Step by Step Solution
- Step 1: Write the proportion equation
21,762,261.20 : 32,644,620.60 = 6,616,686.80 : x - Step 2: Convert to fraction form
21,762,261.20/32,644,620.60 = 6,616,686.80/x - Step 3: Cross multiply
21,762,261.20x = 32,644,620.60 × 6,616,686.80 - Step 4: Simplify right side
21,762,261.20x = 215,999,230,215,028.09 - Step 5: Solve for x
x = 215,999,230,215,028.09/21,762,261.20 - Step 6: Final answer
x = 9,925,403.81
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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.