Finding the Fourth Proportional to 11,475,103.86, 15,835,991.76 and 6,318,649.92
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Solution
The fourth proportional to 11,475,103.86, 15,835,991.76 and 6,318,649.92 is: 8,719,928.75
Step by Step Solution
- Step 1: Write the proportion equation
11,475,103.86 : 15,835,991.76 = 6,318,649.92 : x - Step 2: Convert to fraction form
11,475,103.86/15,835,991.76 = 6,318,649.92/x - Step 3: Cross multiply
11,475,103.86x = 15,835,991.76 × 6,318,649.92 - Step 4: Simplify right side
11,475,103.86x = 100,062,088,067,444.66 - Step 5: Solve for x
x = 100,062,088,067,444.66/11,475,103.86 - Step 6: Final answer
x = 8,719,928.75
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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.