Finding the Fourth Proportional to 11,853,693.42, 16,358,091.36 and 6,421,137.90
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Solution
The fourth proportional to 11,853,693.42, 16,358,091.36 and 6,421,137.90 is: 8,861,167.29
Step by Step Solution
- Step 1: Write the proportion equation
11,853,693.42 : 16,358,091.36 = 6,421,137.90 : x - Step 2: Convert to fraction form
11,853,693.42/16,358,091.36 = 6,421,137.90/x - Step 3: Cross multiply
11,853,693.42x = 16,358,091.36 × 6,421,137.90 - Step 4: Simplify right side
11,853,693.42x = 105,037,560,403,358.55 - Step 5: Solve for x
x = 105,037,560,403,358.55/11,853,693.42 - Step 6: Final answer
x = 8,861,167.29
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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.