Finding the Fourth Proportional to 155,757,020.70, 215,010,874.08 and 97,048,691.94
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Solution
The fourth proportional to 155,757,020.70, 215,010,874.08 and 97,048,691.94 is: 133,968,433.58
Step by Step Solution
- Step 1: Write the proportion equation
155,757,020.70 : 215,010,874.08 = 97,048,691.94 : x - Step 2: Convert to fraction form
155,757,020.70/215,010,874.08 = 97,048,691.94/x - Step 3: Cross multiply
155,757,020.70x = 215,010,874.08 × 97,048,691.94 - Step 4: Simplify right side
155,757,020.70x = 20,866,524,082,340,052 - Step 5: Solve for x
x = 20,866,524,082,340,052/155,757,020.70 - Step 6: Final answer
x = 133,968,433.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.