Finding the Fourth Proportional to 10,750,279.20, 16,125,418.80 and 6,719,200.80
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Solution
The fourth proportional to 10,750,279.20, 16,125,418.80 and 6,719,200.80 is: 10,078,801.20
Step by Step Solution
- Step 1: Write the proportion equation
10,750,279.20 : 16,125,418.80 = 6,719,200.80 : x - Step 2: Convert to fraction form
10,750,279.20/16,125,418.80 = 6,719,200.80/x - Step 3: Cross multiply
10,750,279.20x = 16,125,418.80 × 6,719,200.80 - Step 4: Simplify right side
10,750,279.20x = 108,349,926,901,295.05 - Step 5: Solve for x
x = 108,349,926,901,295.05/10,750,279.20 - Step 6: Final answer
x = 10,078,801.20
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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.