Finding the Fourth Proportional to 7,023,178.88, 10,532,690.40 and 2,979,615.68
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Solution
The fourth proportional to 7,023,178.88, 10,532,690.40 and 2,979,615.68 is: 4,468,541.95
Step by Step Solution
- Step 1: Write the proportion equation
7,023,178.88 : 10,532,690.40 = 2,979,615.68 : x - Step 2: Convert to fraction form
7,023,178.88/10,532,690.40 = 2,979,615.68/x - Step 3: Cross multiply
7,023,178.88x = 10,532,690.40 × 2,979,615.68 - Step 4: Simplify right side
7,023,178.88x = 31,383,369,468,425.48 - Step 5: Solve for x
x = 31,383,369,468,425.48/7,023,178.88 - Step 6: Final answer
x = 4,468,541.95
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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.