Finding the Fourth Proportional to 20,263,154.66, 27,962,819.61 and 10,970,650.44
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Solution
The fourth proportional to 20,263,154.66, 27,962,819.61 and 10,970,650.44 is: 15,139,316.88
Step by Step Solution
- Step 1: Write the proportion equation
20,263,154.66 : 27,962,819.61 = 10,970,650.44 : x - Step 2: Convert to fraction form
20,263,154.66/27,962,819.61 = 10,970,650.44/x - Step 3: Cross multiply
20,263,154.66x = 27,962,819.61 × 10,970,650.44 - Step 4: Simplify right side
20,263,154.66x = 306,770,319,258,087.12 - Step 5: Solve for x
x = 306,770,319,258,087.12/20,263,154.66 - Step 6: Final answer
x = 15,139,316.88
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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.