Finding the Fourth Proportional to 13,156,276.20, 19,734,414.30 and 5,582,257.80
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Solution
The fourth proportional to 13,156,276.20, 19,734,414.30 and 5,582,257.80 is: 8,373,386.70
Step by Step Solution
- Step 1: Write the proportion equation
13,156,276.20 : 19,734,414.30 = 5,582,257.80 : x - Step 2: Convert to fraction form
13,156,276.20/19,734,414.30 = 5,582,257.80/x - Step 3: Cross multiply
13,156,276.20x = 19,734,414.30 × 5,582,257.80 - Step 4: Simplify right side
13,156,276.20x = 110,162,588,154,606.55 - Step 5: Solve for x
x = 110,162,588,154,606.55/13,156,276.20 - Step 6: Final answer
x = 8,373,386.70
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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.