Finding the Fourth Proportional to 74,735,216.40, 112,102,824.60 and 40,297,839.60
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Solution
The fourth proportional to 74,735,216.40, 112,102,824.60 and 40,297,839.60 is: 60,446,759.40
Step by Step Solution
- Step 1: Write the proportion equation
74,735,216.40 : 112,102,824.60 = 40,297,839.60 : x - Step 2: Convert to fraction form
74,735,216.40/112,102,824.60 = 40,297,839.60/x - Step 3: Cross multiply
74,735,216.40x = 112,102,824.60 × 40,297,839.60 - Step 4: Simplify right side
74,735,216.40x = 4,517,501,644,437,734 - Step 5: Solve for x
x = 4,517,501,644,437,734/74,735,216.40 - Step 6: Final answer
x = 60,446,759.40
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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.