Finding the Fourth Proportional to 5,419,548.36, 8,129,326.05 and 1,376,339.40
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Solution
The fourth proportional to 5,419,548.36, 8,129,326.05 and 1,376,339.40 is: 2,064,509.99
Step by Step Solution
- Step 1: Write the proportion equation
5,419,548.36 : 8,129,326.05 = 1,376,339.40 : x - Step 2: Convert to fraction form
5,419,548.36/8,129,326.05 = 1,376,339.40/x - Step 3: Cross multiply
5,419,548.36x = 8,129,326.05 × 1,376,339.40 - Step 4: Simplify right side
5,419,548.36x = 11,188,711,738,061.37 - Step 5: Solve for x
x = 11,188,711,738,061.37/5,419,548.36 - Step 6: Final answer
x = 2,064,509.99
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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.