Finding the Fourth Proportional to 161,728,143.40, 242,676,195.90 and 70,860,917.80
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Solution
The fourth proportional to 161,728,143.40, 242,676,195.90 and 70,860,917.80 is: 106,328,172.75
Step by Step Solution
- Step 1: Write the proportion equation
161,728,143.40 : 242,676,195.90 = 70,860,917.80 : x - Step 2: Convert to fraction form
161,728,143.40/242,676,195.90 = 70,860,917.80/x - Step 3: Cross multiply
161,728,143.40x = 242,676,195.90 × 70,860,917.80 - Step 4: Simplify right side
161,728,143.40x = 17,196,257,969,686,596 - Step 5: Solve for x
x = 17,196,257,969,686,596/161,728,143.40 - Step 6: Final answer
x = 106,328,172.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.