Finding the Fourth Proportional to 74,618,840.34, 102,972,952.94 and 41,580,481.97
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Solution
The fourth proportional to 74,618,840.34, 102,972,952.94 and 41,580,481.97 is: 57,380,481.85
Step by Step Solution
- Step 1: Write the proportion equation
74,618,840.34 : 102,972,952.94 = 41,580,481.97 : x - Step 2: Convert to fraction form
74,618,840.34/102,972,952.94 = 41,580,481.97/x - Step 3: Cross multiply
74,618,840.34x = 102,972,952.94 × 41,580,481.97 - Step 4: Simplify right side
74,618,840.34x = 4,281,665,013,480,711.50 - Step 5: Solve for x
x = 4,281,665,013,480,711.50/74,618,840.34 - Step 6: Final answer
x = 57,380,481.85
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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.