Finding the Fourth Proportional to 209,986,440.60, 314,979,660.90 and 133,060,027.80
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Solution
The fourth proportional to 209,986,440.60, 314,979,660.90 and 133,060,027.80 is: 199,590,041.70
Step by Step Solution
- Step 1: Write the proportion equation
209,986,440.60 : 314,979,660.90 = 133,060,027.80 : x - Step 2: Convert to fraction form
209,986,440.60/314,979,660.90 = 133,060,027.80/x - Step 3: Cross multiply
209,986,440.60x = 314,979,660.90 × 133,060,027.80 - Step 4: Simplify right side
209,986,440.60x = 41,911,202,435,788,568 - Step 5: Solve for x
x = 41,911,202,435,788,568/209,986,440.60 - Step 6: Final answer
x = 199,590,041.70
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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.