Finding the Fourth Proportional to 91,296,589.60, 125,990,816 and 49,481,990.40
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Solution
The fourth proportional to 91,296,589.60, 125,990,816 and 49,481,990.40 is: 68,285,971.85
Step by Step Solution
- Step 1: Write the proportion equation
91,296,589.60 : 125,990,816 = 49,481,990.40 : x - Step 2: Convert to fraction form
91,296,589.60/125,990,816 = 49,481,990.40/x - Step 3: Cross multiply
91,296,589.60x = 125,990,816 × 49,481,990.40 - Step 4: Simplify right side
91,296,589.60x = 6,234,276,347,800,166 - Step 5: Solve for x
x = 6,234,276,347,800,166/91,296,589.60 - Step 6: Final answer
x = 68,285,971.85
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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.