Finding the Fourth Proportional to 209,107,101.60, 313,660,652.40 and 192,385,591.20
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Solution
The fourth proportional to 209,107,101.60, 313,660,652.40 and 192,385,591.20 is: 288,578,386.80
Step by Step Solution
- Step 1: Write the proportion equation
209,107,101.60 : 313,660,652.40 = 192,385,591.20 : x - Step 2: Convert to fraction form
209,107,101.60/313,660,652.40 = 192,385,591.20/x - Step 3: Cross multiply
209,107,101.60x = 313,660,652.40 × 192,385,591.20 - Step 4: Simplify right side
209,107,101.60x = 60,343,790,048,151,688 - Step 5: Solve for x
x = 60,343,790,048,151,688/209,107,101.60 - Step 6: Final answer
x = 288,578,386.80
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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.