Finding the Fourth Proportional to 161,531,155.20, 242,296,732.80 and 97,830,163.20
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Solution
The fourth proportional to 161,531,155.20, 242,296,732.80 and 97,830,163.20 is: 146,745,244.80
Step by Step Solution
- Step 1: Write the proportion equation
161,531,155.20 : 242,296,732.80 = 97,830,163.20 : x - Step 2: Convert to fraction form
161,531,155.20/242,296,732.80 = 97,830,163.20/x - Step 3: Cross multiply
161,531,155.20x = 242,296,732.80 × 97,830,163.20 - Step 4: Simplify right side
161,531,155.20x = 23,703,928,912,650,796 - Step 5: Solve for x
x = 23,703,928,912,650,796/161,531,155.20 - Step 6: Final answer
x = 146,745,244.80
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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.