Finding the Fourth Proportional to 76,469,446.40, 114,688,228.80 and 27,970,145.60
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Solution
The fourth proportional to 76,469,446.40, 114,688,228.80 and 27,970,145.60 is: 41,949,387.75
Step by Step Solution
- Step 1: Write the proportion equation
76,469,446.40 : 114,688,228.80 = 27,970,145.60 : x - Step 2: Convert to fraction form
76,469,446.40/114,688,228.80 = 27,970,145.60/x - Step 3: Cross multiply
76,469,446.40x = 114,688,228.80 × 27,970,145.60 - Step 4: Simplify right side
76,469,446.40x = 3,207,846,458,142,113.50 - Step 5: Solve for x
x = 3,207,846,458,142,113.50/76,469,446.40 - Step 6: Final answer
x = 41,949,387.75
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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.