Finding the Fourth Proportional to 11,565,553.60, 17,331,741.60 and 8,509,067.20
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Solution
The fourth proportional to 11,565,553.60, 17,331,741.60 and 8,509,067.20 is: 12,751,396.00
Step by Step Solution
- Step 1: Write the proportion equation
11,565,553.60 : 17,331,741.60 = 8,509,067.20 : x - Step 2: Convert to fraction form
11,565,553.60/17,331,741.60 = 8,509,067.20/x - Step 3: Cross multiply
11,565,553.60x = 17,331,741.60 × 8,509,067.20 - Step 4: Simplify right side
11,565,553.60x = 147,476,953,967,435.53 - Step 5: Solve for x
x = 147,476,953,967,435.53/11,565,553.60 - Step 6: Final answer
x = 12,751,396.00
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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.