Finding the Fourth Proportional to 85,458,135.60, 117,815,097.24 and 54,080,575.92
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Solution
The fourth proportional to 85,458,135.60, 117,815,097.24 and 54,080,575.92 is: 74,557,071.32
Step by Step Solution
- Step 1: Write the proportion equation
85,458,135.60 : 117,815,097.24 = 54,080,575.92 : x - Step 2: Convert to fraction form
85,458,135.60/117,815,097.24 = 54,080,575.92/x - Step 3: Cross multiply
85,458,135.60x = 117,815,097.24 × 54,080,575.92 - Step 4: Simplify right side
85,458,135.60x = 6,371,508,310,810,002 - Step 5: Solve for x
x = 6,371,508,310,810,002/85,458,135.60 - Step 6: Final answer
x = 74,557,071.32
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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.