Finding the Fourth Proportional to 3,811,632.68, 5,259,366.87 and 2,157,768.56
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Solution
The fourth proportional to 3,811,632.68, 5,259,366.87 and 2,157,768.56 is: 2,977,332.14
Step by Step Solution
- Step 1: Write the proportion equation
3,811,632.68 : 5,259,366.87 = 2,157,768.56 : x - Step 2: Convert to fraction form
3,811,632.68/5,259,366.87 = 2,157,768.56/x - Step 3: Cross multiply
3,811,632.68x = 5,259,366.87 × 2,157,768.56 - Step 4: Simplify right side
3,811,632.68x = 11,348,496,477,591.61 - Step 5: Solve for x
x = 11,348,496,477,591.61/3,811,632.68 - Step 6: Final answer
x = 2,977,332.14
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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.