Finding the Fourth Proportional to 20,471,036.88, 30,717,182.52 and 8,349,393.36
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Solution
The fourth proportional to 20,471,036.88, 30,717,182.52 and 8,349,393.36 is: 12,528,424.49
Step by Step Solution
- Step 1: Write the proportion equation
20,471,036.88 : 30,717,182.52 = 8,349,393.36 : x - Step 2: Convert to fraction form
20,471,036.88/30,717,182.52 = 8,349,393.36/x - Step 3: Cross multiply
20,471,036.88x = 30,717,182.52 × 8,349,393.36 - Step 4: Simplify right side
20,471,036.88x = 256,469,839,770,396.06 - Step 5: Solve for x
x = 256,469,839,770,396.06/20,471,036.88 - Step 6: Final answer
x = 12,528,424.49
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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.