Finding the Fourth Proportional to 3,767,894.76, 5,199,831.18 and 2,158,573.80
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Solution
The fourth proportional to 3,767,894.76, 5,199,831.18 and 2,158,573.80 is: 2,978,909.99
Step by Step Solution
- Step 1: Write the proportion equation
3,767,894.76 : 5,199,831.18 = 2,158,573.80 : x - Step 2: Convert to fraction form
3,767,894.76/5,199,831.18 = 2,158,573.80/x - Step 3: Cross multiply
3,767,894.76x = 5,199,831.18 × 2,158,573.80 - Step 4: Simplify right side
3,767,894.76x = 11,224,219,349,571.08 - Step 5: Solve for x
x = 11,224,219,349,571.08/3,767,894.76 - Step 6: Final answer
x = 2,978,909.99
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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.