Finding the Fourth Proportional to 74,734,163.60, 112,101,245.40 and 55,602,287.60
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Solution
The fourth proportional to 74,734,163.60, 112,101,245.40 and 55,602,287.60 is: 83,403,431.40
Step by Step Solution
- Step 1: Write the proportion equation
74,734,163.60 : 112,101,245.40 = 55,602,287.60 : x - Step 2: Convert to fraction form
74,734,163.60/112,101,245.40 = 55,602,287.60/x - Step 3: Cross multiply
74,734,163.60x = 112,101,245.40 × 55,602,287.60 - Step 4: Simplify right side
74,734,163.60x = 6,233,085,687,048,978 - Step 5: Solve for x
x = 6,233,085,687,048,978/74,734,163.60 - Step 6: Final answer
x = 83,403,431.40
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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.