Finding the Fourth Proportional to 99,804,811.60, 149,413,284.60 and 74,358,629.20
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Solution
The fourth proportional to 99,804,811.60, 149,413,284.60 and 74,358,629.20 is: 111,318,951.95
Step by Step Solution
- Step 1: Write the proportion equation
99,804,811.60 : 149,413,284.60 = 74,358,629.20 : x - Step 2: Convert to fraction form
99,804,811.60/149,413,284.60 = 74,358,629.20/x - Step 3: Cross multiply
99,804,811.60x = 149,413,284.60 × 74,358,629.20 - Step 4: Simplify right side
99,804,811.60x = 11,110,167,027,125,470 - Step 5: Solve for x
x = 11,110,167,027,125,470/99,804,811.60 - Step 6: Final answer
x = 111,318,951.95
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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.