Finding the Fourth Proportional to 161,877,803.20, 242,816,704.80 and 133,534,283.20
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Solution
The fourth proportional to 161,877,803.20, 242,816,704.80 and 133,534,283.20 is: 200,301,424.80
Step by Step Solution
- Step 1: Write the proportion equation
161,877,803.20 : 242,816,704.80 = 133,534,283.20 : x - Step 2: Convert to fraction form
161,877,803.20/242,816,704.80 = 133,534,283.20/x - Step 3: Cross multiply
161,877,803.20x = 242,816,704.80 × 133,534,283.20 - Step 4: Simplify right side
161,877,803.20x = 32,424,354,624,454,000 - Step 5: Solve for x
x = 32,424,354,624,454,000/161,877,803.20 - Step 6: Final answer
x = 200,301,424.80
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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.