Finding the Fourth Proportional to 191,277,818.92, 263,916,553.71 and 107,629,639.75
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Solution
The fourth proportional to 191,277,818.92, 263,916,553.71 and 107,629,639.75 is: 148,502,548.60
Step by Step Solution
- Step 1: Write the proportion equation
191,277,818.92 : 263,916,553.71 = 107,629,639.75 : x - Step 2: Convert to fraction form
191,277,818.92/263,916,553.71 = 107,629,639.75/x - Step 3: Cross multiply
191,277,818.92x = 263,916,553.71 × 107,629,639.75 - Step 4: Simplify right side
191,277,818.92x = 28,405,243,599,868,828 - Step 5: Solve for x
x = 28,405,243,599,868,828/191,277,818.92 - Step 6: Final answer
x = 148,502,548.60
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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.