Finding the Fourth Proportional to 68,263,052.40, 102,394,578.60 and 45,304,801.20
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Solution
The fourth proportional to 68,263,052.40, 102,394,578.60 and 45,304,801.20 is: 67,957,201.80
Step by Step Solution
- Step 1: Write the proportion equation
68,263,052.40 : 102,394,578.60 = 45,304,801.20 : x - Step 2: Convert to fraction form
68,263,052.40/102,394,578.60 = 45,304,801.20/x - Step 3: Cross multiply
68,263,052.40x = 102,394,578.60 × 45,304,801.20 - Step 4: Simplify right side
68,263,052.40x = 4,638,966,027,430,774 - Step 5: Solve for x
x = 4,638,966,027,430,774/68,263,052.40 - Step 6: Final answer
x = 67,957,201.80
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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.