Finding the Fourth Proportional to 161,531,161.20, 242,296,741.80 and 97,830,169.20
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Solution
The fourth proportional to 161,531,161.20, 242,296,741.80 and 97,830,169.20 is: 146,745,253.80
Step by Step Solution
- Step 1: Write the proportion equation
161,531,161.20 : 242,296,741.80 = 97,830,169.20 : x - Step 2: Convert to fraction form
161,531,161.20/242,296,741.80 = 97,830,169.20/x - Step 3: Cross multiply
161,531,161.20x = 242,296,741.80 × 97,830,169.20 - Step 4: Simplify right side
161,531,161.20x = 23,703,931,246,902,716 - Step 5: Solve for x
x = 23,703,931,246,902,716/161,531,161.20 - Step 6: Final answer
x = 146,745,253.80
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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.