Finding the Fourth Proportional to 10,409,721.21, 14,339,747.30 and 8,856,006.66
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Solution
The fourth proportional to 10,409,721.21, 14,339,747.30 and 8,856,006.66 is: 12,199,452.32
Step by Step Solution
- Step 1: Write the proportion equation
10,409,721.21 : 14,339,747.30 = 8,856,006.66 : x - Step 2: Convert to fraction form
10,409,721.21/14,339,747.30 = 8,856,006.66/x - Step 3: Cross multiply
10,409,721.21x = 14,339,747.30 × 8,856,006.66 - Step 4: Simplify right side
10,409,721.21x = 126,992,897,547,236.98 - Step 5: Solve for x
x = 126,992,897,547,236.98/10,409,721.21 - Step 6: Final answer
x = 12,199,452.32
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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.