Finding the Fourth Proportional to 10,990,464.96, 15,149,323.76 and 8,663,565.84
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Solution
The fourth proportional to 10,990,464.96, 15,149,323.76 and 8,663,565.84 is: 11,941,911.86
Step by Step Solution
- Step 1: Write the proportion equation
10,990,464.96 : 15,149,323.76 = 8,663,565.84 : x - Step 2: Convert to fraction form
10,990,464.96/15,149,323.76 = 8,663,565.84/x - Step 3: Cross multiply
10,990,464.96x = 15,149,323.76 × 8,663,565.84 - Step 4: Simplify right side
10,990,464.96x = 131,247,163,826,236.36 - Step 5: Solve for x
x = 131,247,163,826,236.36/10,990,464.96 - Step 6: Final answer
x = 11,941,911.86
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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.