Finding the Fourth Proportional to 586,082,021.20, 879,123,031.80 and 149,381,861.20
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Solution
The fourth proportional to 586,082,021.20, 879,123,031.80 and 149,381,861.20 is: 224,072,791.80
Step by Step Solution
- Step 1: Write the proportion equation
586,082,021.20 : 879,123,031.80 = 149,381,861.20 : x - Step 2: Convert to fraction form
586,082,021.20/879,123,031.80 = 149,381,861.20/x - Step 3: Cross multiply
586,082,021.20x = 879,123,031.80 × 149,381,861.20 - Step 4: Simplify right side
586,082,021.20x = 131,325,034,714,070,768 - Step 5: Solve for x
x = 131,325,034,714,070,768/586,082,021.20 - Step 6: Final answer
x = 224,072,791.80
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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.