Finding the Fourth Proportional to 3,811,632.18, 5,259,366.18 and 2,157,768.06
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Solution
The fourth proportional to 3,811,632.18, 5,259,366.18 and 2,157,768.06 is: 2,977,331.45
Step by Step Solution
- Step 1: Write the proportion equation
3,811,632.18 : 5,259,366.18 = 2,157,768.06 : x - Step 2: Convert to fraction form
3,811,632.18/5,259,366.18 = 2,157,768.06/x - Step 3: Cross multiply
3,811,632.18x = 5,259,366.18 × 2,157,768.06 - Step 4: Simplify right side
3,811,632.18x = 11,348,492,359,048.21 - Step 5: Solve for x
x = 11,348,492,359,048.21/3,811,632.18 - Step 6: Final answer
x = 2,977,331.45
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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.