Finding the Fourth Proportional to 91,102,858.62, 125,721,944.90 and 49,849,751
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Solution
The fourth proportional to 91,102,858.62, 125,721,944.90 and 49,849,751 is: 68,792,656.38
Step by Step Solution
- Step 1: Write the proportion equation
91,102,858.62 : 125,721,944.90 = 49,849,751 : x - Step 2: Convert to fraction form
91,102,858.62/125,721,944.90 = 49,849,751/x - Step 3: Cross multiply
91,102,858.62x = 125,721,944.90 × 49,849,751 - Step 4: Simplify right side
91,102,858.62x = 6,267,207,648,500,720 - Step 5: Solve for x
x = 6,267,207,648,500,720/91,102,858.62 - Step 6: Final answer
x = 68,792,656.38
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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.