Finding the Fourth Proportional to 91,336,308.23, 125,922,174.39 and 72,560,188.49
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Solution
The fourth proportional to 91,336,308.23, 125,922,174.39 and 72,560,188.49 is: 100,036,194.65
Step by Step Solution
- Step 1: Write the proportion equation
91,336,308.23 : 125,922,174.39 = 72,560,188.49 : x - Step 2: Convert to fraction form
91,336,308.23/125,922,174.39 = 72,560,188.49/x - Step 3: Cross multiply
91,336,308.23x = 125,922,174.39 × 72,560,188.49 - Step 4: Simplify right side
91,336,308.23x = 9,136,936,708,179,440 - Step 5: Solve for x
x = 9,136,936,708,179,440/91,336,308.23 - Step 6: Final answer
x = 100,036,194.65
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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.