Finding the Fourth Proportional to 83,100,591.28, 125,218,109.08 and 68,286,378.16
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Solution
The fourth proportional to 83,100,591.28, 125,218,109.08 and 68,286,378.16 is: 102,895,671.59
Step by Step Solution
- Step 1: Write the proportion equation
83,100,591.28 : 125,218,109.08 = 68,286,378.16 : x - Step 2: Convert to fraction form
83,100,591.28/125,218,109.08 = 68,286,378.16/x - Step 3: Cross multiply
83,100,591.28x = 125,218,109.08 × 68,286,378.16 - Step 4: Simplify right side
83,100,591.28x = 8,550,691,149,117,009 - Step 5: Solve for x
x = 8,550,691,149,117,009/83,100,591.28 - Step 6: Final answer
x = 102,895,671.59
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.