Finding the Fourth Proportional to 1,253,616,211.44, 1,880,432,330.79 and 368,297,949.75
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Solution
The fourth proportional to 1,253,616,211.44, 1,880,432,330.79 and 368,297,949.75 is: 552,449,278.94
Step by Step Solution
- Step 1: Write the proportion equation
1,253,616,211.44 : 1,880,432,330.79 = 368,297,949.75 : x - Step 2: Convert to fraction form
1,253,616,211.44/1,880,432,330.79 = 368,297,949.75/x - Step 3: Cross multiply
1,253,616,211.44x = 1,880,432,330.79 × 368,297,949.75 - Step 4: Simplify right side
1,253,616,211.44x = 692,559,372,073,570,816 - Step 5: Solve for x
x = 692,559,372,073,570,816/1,253,616,211.44 - Step 6: Final answer
x = 552,449,278.94
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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.