Finding the Fourth Proportional to 13,475,517.60, 20,215,900.80 and 3,891,208.80
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Solution
The fourth proportional to 13,475,517.60, 20,215,900.80 and 3,891,208.80 is: 5,837,571.03
Step by Step Solution
- Step 1: Write the proportion equation
13,475,517.60 : 20,215,900.80 = 3,891,208.80 : x - Step 2: Convert to fraction form
13,475,517.60/20,215,900.80 = 3,891,208.80/x - Step 3: Cross multiply
13,475,517.60x = 20,215,900.80 × 3,891,208.80 - Step 4: Simplify right side
13,475,517.60x = 78,664,291,092,887.05 - Step 5: Solve for x
x = 78,664,291,092,887.05/13,475,517.60 - Step 6: Final answer
x = 5,837,571.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.