Finding the Fourth Proportional to 12,418,279.60, 18,630,519.52 and 4,331,371.44
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Solution
The fourth proportional to 12,418,279.60, 18,630,519.52 and 4,331,371.44 is: 6,498,138.45
Step by Step Solution
- Step 1: Write the proportion equation
12,418,279.60 : 18,630,519.52 = 4,331,371.44 : x - Step 2: Convert to fraction form
12,418,279.60/18,630,519.52 = 4,331,371.44/x - Step 3: Cross multiply
12,418,279.60x = 18,630,519.52 × 4,331,371.44 - Step 4: Simplify right side
12,418,279.60x = 80,695,700,161,290.52 - Step 5: Solve for x
x = 80,695,700,161,290.52/12,418,279.60 - Step 6: Final answer
x = 6,498,138.45
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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.