Finding the Fourth Proportional to 434,432,084.80, 651,474,916.80 and 143,218,163.20
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Solution
The fourth proportional to 434,432,084.80, 651,474,916.80 and 143,218,163.20 is: 214,770,142.95
Step by Step Solution
- Step 1: Write the proportion equation
434,432,084.80 : 651,474,916.80 = 143,218,163.20 : x - Step 2: Convert to fraction form
434,432,084.80/651,474,916.80 = 143,218,163.20/x - Step 3: Cross multiply
434,432,084.80x = 651,474,916.80 × 143,218,163.20 - Step 4: Simplify right side
434,432,084.80x = 93,303,040,954,968,800 - Step 5: Solve for x
x = 93,303,040,954,968,800/434,432,084.80 - Step 6: Final answer
x = 214,770,142.95
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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.