Finding the Fourth Proportional to 13,214,872.88, 19,818,474.92 and 5,538,317.12
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Solution
The fourth proportional to 13,214,872.88, 19,818,474.92 and 5,538,317.12 is: 8,305,868.69
Step by Step Solution
- Step 1: Write the proportion equation
13,214,872.88 : 19,818,474.92 = 5,538,317.12 : x - Step 2: Convert to fraction form
13,214,872.88/19,818,474.92 = 5,538,317.12/x - Step 3: Cross multiply
13,214,872.88x = 19,818,474.92 × 5,538,317.12 - Step 4: Simplify right side
13,214,872.88x = 109,760,998,941,726.64 - Step 5: Solve for x
x = 109,760,998,941,726.64/13,214,872.88 - Step 6: Final answer
x = 8,305,868.69
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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.