Finding the Fourth Proportional to 53,310,076.92, 79,965,115.36 and 12,920,560.92
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Solution
The fourth proportional to 53,310,076.92, 79,965,115.36 and 12,920,560.92 is: 19,380,841.38
Step by Step Solution
- Step 1: Write the proportion equation
53,310,076.92 : 79,965,115.36 = 12,920,560.92 : x - Step 2: Convert to fraction form
53,310,076.92/79,965,115.36 = 12,920,560.92/x - Step 3: Cross multiply
53,310,076.92x = 79,965,115.36 × 12,920,560.92 - Step 4: Simplify right side
53,310,076.92x = 1,033,194,144,483,707.75 - Step 5: Solve for x
x = 1,033,194,144,483,707.75/53,310,076.92 - Step 6: Final answer
x = 19,380,841.38
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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.