Finding the Fourth Proportional to 10,647,733.28, 14,676,657.36 and 8,320,581.20
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Solution
The fourth proportional to 10,647,733.28, 14,676,657.36 and 8,320,581.20 is: 11,468,949.88
Step by Step Solution
- Step 1: Write the proportion equation
10,647,733.28 : 14,676,657.36 = 8,320,581.20 : x - Step 2: Convert to fraction form
10,647,733.28/14,676,657.36 = 8,320,581.20/x - Step 3: Cross multiply
10,647,733.28x = 14,676,657.36 × 8,320,581.20 - Step 4: Simplify right side
10,647,733.28x = 122,118,319,308,457.62 - Step 5: Solve for x
x = 122,118,319,308,457.62/10,647,733.28 - Step 6: Final answer
x = 11,468,949.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.