Finding the Fourth Proportional to 14,641,112.70, 20,205,480.15 and 8,443,855.26
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Solution
The fourth proportional to 14,641,112.70, 20,205,480.15 and 8,443,855.26 is: 11,652,949.70
Step by Step Solution
- Step 1: Write the proportion equation
14,641,112.70 : 20,205,480.15 = 8,443,855.26 : x - Step 2: Convert to fraction form
14,641,112.70/20,205,480.15 = 8,443,855.26/x - Step 3: Cross multiply
14,641,112.70x = 20,205,480.15 × 8,443,855.26 - Step 4: Simplify right side
14,641,112.70x = 170,612,149,845,403.06 - Step 5: Solve for x
x = 170,612,149,845,403.06/14,641,112.70 - Step 6: Final answer
x = 11,652,949.70
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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.