Finding the Fourth Proportional to 20,511,500.24, 30,767,880.12 and 7,048,137.68
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Solution
The fourth proportional to 20,511,500.24, 30,767,880.12 and 7,048,137.68 is: 10,572,422.92
Step by Step Solution
- Step 1: Write the proportion equation
20,511,500.24 : 30,767,880.12 = 7,048,137.68 : x - Step 2: Convert to fraction form
20,511,500.24/30,767,880.12 = 7,048,137.68/x - Step 3: Cross multiply
20,511,500.24x = 30,767,880.12 × 7,048,137.68 - Step 4: Simplify right side
20,511,500.24x = 216,856,255,207,494.91 - Step 5: Solve for x
x = 216,856,255,207,494.91/20,511,500.24 - Step 6: Final answer
x = 10,572,422.92
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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.