Finding the Fourth Proportional to 428,482,583.70, 591,306,346.53 and 232,912,295.70
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Solution
The fourth proportional to 428,482,583.70, 591,306,346.53 and 232,912,295.70 is: 321,419,175.18
Step by Step Solution
- Step 1: Write the proportion equation
428,482,583.70 : 591,306,346.53 = 232,912,295.70 : x - Step 2: Convert to fraction form
428,482,583.70/591,306,346.53 = 232,912,295.70/x - Step 3: Cross multiply
428,482,583.70x = 591,306,346.53 × 232,912,295.70 - Step 4: Simplify right side
428,482,583.70x = 137,722,518,632,282,016 - Step 5: Solve for x
x = 137,722,518,632,282,016/428,482,583.70 - Step 6: Final answer
x = 321,419,175.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.