Finding the Fourth Proportional to 155,082,548.24, 214,013,917.78 and 85,467,929.91
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Solution
The fourth proportional to 155,082,548.24, 214,013,917.78 and 85,467,929.91 is: 117,945,743.94
Step by Step Solution
- Step 1: Write the proportion equation
155,082,548.24 : 214,013,917.78 = 85,467,929.91 : x - Step 2: Convert to fraction form
155,082,548.24/214,013,917.78 = 85,467,929.91/x - Step 3: Cross multiply
155,082,548.24x = 214,013,917.78 × 85,467,929.91 - Step 4: Simplify right side
155,082,548.24x = 18,291,326,524,371,872 - Step 5: Solve for x
x = 18,291,326,524,371,872/155,082,548.24 - Step 6: Final answer
x = 117,945,743.94
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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.