Finding the Fourth Proportional to 13,291,284.20, 19,936,926.30 and 3,193,905.20
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Solution
The fourth proportional to 13,291,284.20, 19,936,926.30 and 3,193,905.20 is: 4,790,857.80
Step by Step Solution
- Step 1: Write the proportion equation
13,291,284.20 : 19,936,926.30 = 3,193,905.20 : x - Step 2: Convert to fraction form
13,291,284.20/19,936,926.30 = 3,193,905.20/x - Step 3: Cross multiply
13,291,284.20x = 19,936,926.30 × 3,193,905.20 - Step 4: Simplify right side
13,291,284.20x = 63,676,652,581,586.77 - Step 5: Solve for x
x = 63,676,652,581,586.77/13,291,284.20 - Step 6: Final answer
x = 4,790,857.80
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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.