Finding the Fourth Proportional to 12,687,481.50, 17,508,743.70 and 6,886,265.36
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Solution
The fourth proportional to 12,687,481.50, 17,508,743.70 and 6,886,265.36 is: 9,503,056.63
Step by Step Solution
- Step 1: Write the proportion equation
12,687,481.50 : 17,508,743.70 = 6,886,265.36 : x - Step 2: Convert to fraction form
12,687,481.50/17,508,743.70 = 6,886,265.36/x - Step 3: Cross multiply
12,687,481.50x = 17,508,743.70 × 6,886,265.36 - Step 4: Simplify right side
12,687,481.50x = 120,569,855,238,428.23 - Step 5: Solve for x
x = 120,569,855,238,428.23/12,687,481.50 - Step 6: Final answer
x = 9,503,056.63
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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.