Finding the Fourth Proportional to 161,723,983.56, 242,611,056.81 and 68,351,348.11
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Solution
The fourth proportional to 161,723,983.56, 242,611,056.81 and 68,351,348.11 is: 102,537,622.65
Step by Step Solution
- Step 1: Write the proportion equation
161,723,983.56 : 242,611,056.81 = 68,351,348.11 : x - Step 2: Convert to fraction form
161,723,983.56/242,611,056.81 = 68,351,348.11/x - Step 3: Cross multiply
161,723,983.56x = 242,611,056.81 × 68,351,348.11 - Step 4: Simplify right side
161,723,983.56x = 16,582,792,799,355,296 - Step 5: Solve for x
x = 16,582,792,799,355,296/161,723,983.56 - Step 6: Final answer
x = 102,537,622.65
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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.