Finding the Fourth Proportional to 14,638,649.26, 20,201,089.35 and 8,112,265.42
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Solution
The fourth proportional to 14,638,649.26, 20,201,089.35 and 8,112,265.42 is: 11,194,789.61
Step by Step Solution
- Step 1: Write the proportion equation
14,638,649.26 : 20,201,089.35 = 8,112,265.42 : x - Step 2: Convert to fraction form
14,638,649.26/20,201,089.35 = 8,112,265.42/x - Step 3: Cross multiply
14,638,649.26x = 20,201,089.35 × 8,112,265.42 - Step 4: Simplify right side
14,638,649.26x = 163,876,598,580,335.28 - Step 5: Solve for x
x = 163,876,598,580,335.28/14,638,649.26 - Step 6: Final answer
x = 11,194,789.61
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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.