Finding the Fourth Proportional to 654,886,313.70, 981,845,192.73 and 396,043,988.84
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Solution
The fourth proportional to 654,886,313.70, 981,845,192.73 and 396,043,988.84 is: 593,773,115.15
Step by Step Solution
- Step 1: Write the proportion equation
654,886,313.70 : 981,845,192.73 = 396,043,988.84 : x - Step 2: Convert to fraction form
654,886,313.70/981,845,192.73 = 396,043,988.84/x - Step 3: Cross multiply
654,886,313.70x = 981,845,192.73 × 396,043,988.84 - Step 4: Simplify right side
654,886,313.70x = 388,853,886,552,167,744 - Step 5: Solve for x
x = 388,853,886,552,167,744/654,886,313.70 - Step 6: Final answer
x = 593,773,115.15
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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.