Finding the Fourth Proportional to 117,526,563.40, 176,289,845.10 and 81,246,857.80
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Solution
The fourth proportional to 117,526,563.40, 176,289,845.10 and 81,246,857.80 is: 121,870,286.70
Step by Step Solution
- Step 1: Write the proportion equation
117,526,563.40 : 176,289,845.10 = 81,246,857.80 : x - Step 2: Convert to fraction form
117,526,563.40/176,289,845.10 = 81,246,857.80/x - Step 3: Cross multiply
117,526,563.40x = 176,289,845.10 × 81,246,857.80 - Step 4: Simplify right side
117,526,563.40x = 14,322,995,976,423,726 - Step 5: Solve for x
x = 14,322,995,976,423,726/117,526,563.40 - Step 6: Final answer
x = 121,870,286.70
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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.