Finding the Fourth Proportional to 13,923,582.12, 19,215,759.25 and 8,124,232.21
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Solution
The fourth proportional to 13,923,582.12, 19,215,759.25 and 8,124,232.21 is: 11,212,149.93
Step by Step Solution
- Step 1: Write the proportion equation
13,923,582.12 : 19,215,759.25 = 8,124,232.21 : x - Step 2: Convert to fraction form
13,923,582.12/19,215,759.25 = 8,124,232.21/x - Step 3: Cross multiply
13,923,582.12x = 19,215,759.25 × 8,124,232.21 - Step 4: Simplify right side
13,923,582.12x = 156,113,290,238,455.44 - Step 5: Solve for x
x = 156,113,290,238,455.44/13,923,582.12 - Step 6: Final answer
x = 11,212,149.93
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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.