Finding the Fourth Proportional to 8,138,813.87, 12,214,125.50 and 6,560,434.10
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Solution
The fourth proportional to 8,138,813.87, 12,214,125.50 and 6,560,434.10 is: 9,845,410.73
Step by Step Solution
- Step 1: Write the proportion equation
8,138,813.87 : 12,214,125.50 = 6,560,434.10 : x - Step 2: Convert to fraction form
8,138,813.87/12,214,125.50 = 6,560,434.10/x - Step 3: Cross multiply
8,138,813.87x = 12,214,125.50 × 6,560,434.10 - Step 4: Simplify right side
8,138,813.87x = 80,129,965,338,006.75 - Step 5: Solve for x
x = 80,129,965,338,006.75/8,138,813.87 - Step 6: Final answer
x = 9,845,410.73
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1.5x scale
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.