Finding the Fourth Proportional to 81,460,819.87, 122,225,068.37 and 32,972,949.79
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Solution
The fourth proportional to 81,460,819.87, 122,225,068.37 and 32,972,949.79 is: 49,473,121.54
Step by Step Solution
- Step 1: Write the proportion equation
81,460,819.87 : 122,225,068.37 = 32,972,949.79 : x - Step 2: Convert to fraction form
81,460,819.87/122,225,068.37 = 32,972,949.79/x - Step 3: Cross multiply
81,460,819.87x = 122,225,068.37 × 32,972,949.79 - Step 4: Simplify right side
81,460,819.87x = 4,030,121,042,443,327 - Step 5: Solve for x
x = 4,030,121,042,443,327/81,460,819.87 - Step 6: Final answer
x = 49,473,121.54
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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.