Finding the Fourth Proportional to 13,922,343.52, 20,904,015.50 and 7,786,346.99
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Solution
The fourth proportional to 13,922,343.52, 20,904,015.50 and 7,786,346.99 is: 11,690,985.64
Step by Step Solution
- Step 1: Write the proportion equation
13,922,343.52 : 20,904,015.50 = 7,786,346.99 : x - Step 2: Convert to fraction form
13,922,343.52/20,904,015.50 = 7,786,346.99/x - Step 3: Cross multiply
13,922,343.52x = 20,904,015.50 × 7,786,346.99 - Step 4: Simplify right side
13,922,343.52x = 162,765,918,050,016.56 - Step 5: Solve for x
x = 162,765,918,050,016.56/13,922,343.52 - Step 6: Final answer
x = 11,690,985.64
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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.