Finding the Fourth Proportional to 84,788,465.21, 117,033,455.80 and 49,515,784.94
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Solution
The fourth proportional to 84,788,465.21, 117,033,455.80 and 49,515,784.94 is: 68,346,601.32
Step by Step Solution
- Step 1: Write the proportion equation
84,788,465.21 : 117,033,455.80 = 49,515,784.94 : x - Step 2: Convert to fraction form
84,788,465.21/117,033,455.80 = 49,515,784.94/x - Step 3: Cross multiply
84,788,465.21x = 117,033,455.80 × 49,515,784.94 - Step 4: Simplify right side
84,788,465.21x = 5,795,003,428,532,274 - Step 5: Solve for x
x = 5,795,003,428,532,274/84,788,465.21 - Step 6: Final answer
x = 68,346,601.32
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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.