Finding the Fourth Proportional to 8,979,573.18, 12,392,082.87 and 4,905,454.62
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Solution
The fourth proportional to 8,979,573.18, 12,392,082.87 and 4,905,454.62 is: 6,769,675.90
Step by Step Solution
- Step 1: Write the proportion equation
8,979,573.18 : 12,392,082.87 = 4,905,454.62 : x - Step 2: Convert to fraction form
8,979,573.18/12,392,082.87 = 4,905,454.62/x - Step 3: Cross multiply
8,979,573.18x = 12,392,082.87 × 4,905,454.62 - Step 4: Simplify right side
8,979,573.18x = 60,788,800,166,064.36 - Step 5: Solve for x
x = 60,788,800,166,064.36/8,979,573.18 - Step 6: Final answer
x = 6,769,675.90
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1.5x scale
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.