Finding the Fourth Proportional to 8,311,789.59, 12,467,683.75 and 4,212,472.21
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Solution
The fourth proportional to 8,311,789.59, 12,467,683.75 and 4,212,472.21 is: 6,318,707.99
Step by Step Solution
- Step 1: Write the proportion equation
8,311,789.59 : 12,467,683.75 = 4,212,472.21 : x - Step 2: Convert to fraction form
8,311,789.59/12,467,683.75 = 4,212,472.21/x - Step 3: Cross multiply
8,311,789.59x = 12,467,683.75 × 4,212,472.21 - Step 4: Simplify right side
8,311,789.59x = 52,519,771,344,422.62 - Step 5: Solve for x
x = 52,519,771,344,422.62/8,311,789.59 - Step 6: Final answer
x = 6,318,707.99
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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.