Finding the Fourth Proportional to 3,818,831.79, 5,269,981.46 and 2,187,767.19
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Solution
The fourth proportional to 3,818,831.79, 5,269,981.46 and 2,187,767.19 is: 3,019,115.05
Step by Step Solution
- Step 1: Write the proportion equation
3,818,831.79 : 5,269,981.46 = 2,187,767.19 : x - Step 2: Convert to fraction form
3,818,831.79/5,269,981.46 = 2,187,767.19/x - Step 3: Cross multiply
3,818,831.79x = 5,269,981.46 × 2,187,767.19 - Step 4: Simplify right side
3,818,831.79x = 11,529,492,519,157.46 - Step 5: Solve for x
x = 11,529,492,519,157.46/3,818,831.79 - Step 6: Final answer
x = 3,019,115.05
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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.