Finding the Fourth Proportional to 186,367,999.20, 279,551,998.80 and 131,948,440.80
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Solution
The fourth proportional to 186,367,999.20, 279,551,998.80 and 131,948,440.80 is: 197,922,661.20
Step by Step Solution
- Step 1: Write the proportion equation
186,367,999.20 : 279,551,998.80 = 131,948,440.80 : x - Step 2: Convert to fraction form
186,367,999.20/279,551,998.80 = 131,948,440.80/x - Step 3: Cross multiply
186,367,999.20x = 279,551,998.80 × 131,948,440.80 - Step 4: Simplify right side
186,367,999.20x = 36,886,450,364,183,472 - Step 5: Solve for x
x = 36,886,450,364,183,472/186,367,999.20 - Step 6: Final answer
x = 197,922,661.20
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1.5x scale
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.