Finding the Fourth Proportional to 11,320,903.20, 16,988,316.84 and 4,496,282.40
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Solution
The fourth proportional to 11,320,903.20, 16,988,316.84 and 4,496,282.40 is: 6,747,188.69
Step by Step Solution
- Step 1: Write the proportion equation
11,320,903.20 : 16,988,316.84 = 4,496,282.40 : x - Step 2: Convert to fraction form
11,320,903.20/16,988,316.84 = 4,496,282.40/x - Step 3: Cross multiply
11,320,903.20x = 16,988,316.84 × 4,496,282.40 - Step 4: Simplify right side
11,320,903.20x = 76,384,270,013,315.62 - Step 5: Solve for x
x = 76,384,270,013,315.62/11,320,903.20 - Step 6: Final answer
x = 6,747,188.69
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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.