Finding the Fourth Proportional to 398,645,107.20, 597,967,660.80 and 223,588,441.80
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Solution
The fourth proportional to 398,645,107.20, 597,967,660.80 and 223,588,441.80 is: 335,382,662.70
Step by Step Solution
- Step 1: Write the proportion equation
398,645,107.20 : 597,967,660.80 = 223,588,441.80 : x - Step 2: Convert to fraction form
398,645,107.20/597,967,660.80 = 223,588,441.80/x - Step 3: Cross multiply
398,645,107.20x = 597,967,660.80 × 223,588,441.80 - Step 4: Simplify right side
398,645,107.20x = 133,698,657,525,062,944 - Step 5: Solve for x
x = 133,698,657,525,062,944/398,645,107.20 - Step 6: Final answer
x = 335,382,662.70
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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.