Finding the Fourth Proportional to 216,161,174.63, 324,275,354.26 and 72,587,598.95
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Solution
The fourth proportional to 216,161,174.63, 324,275,354.26 and 72,587,598.95 is: 108,892,678.82
Step by Step Solution
- Step 1: Write the proportion equation
216,161,174.63 : 324,275,354.26 = 72,587,598.95 : x - Step 2: Convert to fraction form
216,161,174.63/324,275,354.26 = 72,587,598.95/x - Step 3: Cross multiply
216,161,174.63x = 324,275,354.26 × 72,587,598.95 - Step 4: Simplify right side
216,161,174.63x = 23,538,369,362,772,676 - Step 5: Solve for x
x = 23,538,369,362,772,676/216,161,174.63 - Step 6: Final answer
x = 108,892,678.82
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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.