Finding the Fourth Proportional to 20,313,518.99, 30,469,925.59 and 8,182,672.31
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Solution
The fourth proportional to 20,313,518.99, 30,469,925.59 and 8,182,672.31 is: 12,273,866.32
Step by Step Solution
- Step 1: Write the proportion equation
20,313,518.99 : 30,469,925.59 = 8,182,672.31 : x - Step 2: Convert to fraction form
20,313,518.99/30,469,925.59 = 8,182,672.31/x - Step 3: Cross multiply
20,313,518.99x = 30,469,925.59 × 8,182,672.31 - Step 4: Simplify right side
20,313,518.99x = 249,325,416,468,771.53 - Step 5: Solve for x
x = 249,325,416,468,771.53/20,313,518.99 - Step 6: Final answer
x = 12,273,866.32
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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.