Finding the Fourth Proportional to 221,609,874.96, 332,431,521.12 and 66,151,402.56
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Solution
The fourth proportional to 221,609,874.96, 332,431,521.12 and 66,151,402.56 is: 99,232,091.45
Step by Step Solution
- Step 1: Write the proportion equation
221,609,874.96 : 332,431,521.12 = 66,151,402.56 : x - Step 2: Convert to fraction form
221,609,874.96/332,431,521.12 = 66,151,402.56/x - Step 3: Cross multiply
221,609,874.96x = 332,431,521.12 × 66,151,402.56 - Step 4: Simplify right side
221,609,874.96x = 21,990,811,377,242,264 - Step 5: Solve for x
x = 21,990,811,377,242,264/221,609,874.96 - Step 6: Final answer
x = 99,232,091.45
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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.