Finding the Fourth Proportional to 374,495,489.80, 561,743,234.70 and 193,096,961.80
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Solution
The fourth proportional to 374,495,489.80, 561,743,234.70 and 193,096,961.80 is: 289,645,442.70
Step by Step Solution
- Step 1: Write the proportion equation
374,495,489.80 : 561,743,234.70 = 193,096,961.80 : x - Step 2: Convert to fraction form
374,495,489.80/561,743,234.70 = 193,096,961.80/x - Step 3: Cross multiply
374,495,489.80x = 561,743,234.70 × 193,096,961.80 - Step 4: Simplify right side
374,495,489.80x = 108,470,911,932,274,352 - Step 5: Solve for x
x = 108,470,911,932,274,352/374,495,489.80 - Step 6: Final answer
x = 289,645,442.70
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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.