Finding the Fourth Proportional to 163,311,022.80, 244,987,529.40 and 81,471,733.20
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Solution
The fourth proportional to 163,311,022.80, 244,987,529.40 and 81,471,733.20 is: 122,218,073.77
Step by Step Solution
- Step 1: Write the proportion equation
163,311,022.80 : 244,987,529.40 = 81,471,733.20 : x - Step 2: Convert to fraction form
163,311,022.80/244,987,529.40 = 81,471,733.20/x - Step 3: Cross multiply
163,311,022.80x = 244,987,529.40 × 81,471,733.20 - Step 4: Simplify right side
163,311,022.80x = 19,959,558,632,603,956 - Step 5: Solve for x
x = 19,959,558,632,603,956/163,311,022.80 - Step 6: Final answer
x = 122,218,073.77
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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.