Finding the Fourth Proportional to 81,488,696.87, 122,245,197.87 and 26,907,047.75
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Solution
The fourth proportional to 81,488,696.87, 122,245,197.87 and 26,907,047.75 is: 40,364,584.32
Step by Step Solution
- Step 1: Write the proportion equation
81,488,696.87 : 122,245,197.87 = 26,907,047.75 : x - Step 2: Convert to fraction form
81,488,696.87/122,245,197.87 = 26,907,047.75/x - Step 3: Cross multiply
81,488,696.87x = 122,245,197.87 × 26,907,047.75 - Step 4: Simplify right side
81,488,696.87x = 3,289,257,376,296,288.50 - Step 5: Solve for x
x = 3,289,257,376,296,288.50/81,488,696.87 - Step 6: Final answer
x = 40,364,584.32
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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.