Finding the Fourth Proportional to 10,345,115.60, 15,491,101.35 and 8,201,636.90
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Solution
The fourth proportional to 10,345,115.60, 15,491,101.35 and 8,201,636.90 is: 12,281,388.95
Step by Step Solution
- Step 1: Write the proportion equation
10,345,115.60 : 15,491,101.35 = 8,201,636.90 : x - Step 2: Convert to fraction form
10,345,115.60/15,491,101.35 = 8,201,636.90/x - Step 3: Cross multiply
10,345,115.60x = 15,491,101.35 × 8,201,636.90 - Step 4: Simplify right side
10,345,115.60x = 127,052,388,453,799.81 - Step 5: Solve for x
x = 127,052,388,453,799.81/10,345,115.60 - Step 6: Final answer
x = 12,281,388.95
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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.