Finding the Fourth Proportional to 8,605,474.09, 11,871,995.92 and 5,120,115.98
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Solution
The fourth proportional to 8,605,474.09, 11,871,995.92 and 5,120,115.98 is: 7,063,642.90
Step by Step Solution
- Step 1: Write the proportion equation
8,605,474.09 : 11,871,995.92 = 5,120,115.98 : x - Step 2: Convert to fraction form
8,605,474.09/11,871,995.92 = 5,120,115.98/x - Step 3: Cross multiply
8,605,474.09x = 11,871,995.92 × 5,120,115.98 - Step 4: Simplify right side
8,605,474.09x = 60,785,995,952,326.53 - Step 5: Solve for x
x = 60,785,995,952,326.53/8,605,474.09 - Step 6: Final answer
x = 7,063,642.90
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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.