Finding the Fourth Proportional to 20,986,422.08, 28,960,497.92 and 11,693,512
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Solution
The fourth proportional to 20,986,422.08, 28,960,497.92 and 11,693,512 is: 16,136,620.56
Step by Step Solution
- Step 1: Write the proportion equation
20,986,422.08 : 28,960,497.92 = 11,693,512 : x - Step 2: Convert to fraction form
20,986,422.08/28,960,497.92 = 11,693,512/x - Step 3: Cross multiply
20,986,422.08x = 28,960,497.92 × 11,693,512 - Step 4: Simplify right side
20,986,422.08x = 338,649,929,953,495.06 - Step 5: Solve for x
x = 338,649,929,953,495.06/20,986,422.08 - Step 6: Final answer
x = 16,136,620.56
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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.