Finding the Fourth Proportional to 20,786,323.44, 31,177,479.18 and 6,405,529.98
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Solution
The fourth proportional to 20,786,323.44, 31,177,479.18 and 6,405,529.98 is: 9,607,676.81
Step by Step Solution
- Step 1: Write the proportion equation
20,786,323.44 : 31,177,479.18 = 6,405,529.98 : x - Step 2: Convert to fraction form
20,786,323.44/31,177,479.18 = 6,405,529.98/x - Step 3: Cross multiply
20,786,323.44x = 31,177,479.18 × 6,405,529.98 - Step 4: Simplify right side
20,786,323.44x = 199,708,277,588,315.84 - Step 5: Solve for x
x = 199,708,277,588,315.84/20,786,323.44 - Step 6: Final answer
x = 9,607,676.81
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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.