Finding the Fourth Proportional to 49,569,918.87, 68,403,489.30 and 27,542,665.11
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Solution
The fourth proportional to 49,569,918.87, 68,403,489.30 and 27,542,665.11 is: 38,007,211.65
Step by Step Solution
- Step 1: Write the proportion equation
49,569,918.87 : 68,403,489.30 = 27,542,665.11 : x - Step 2: Convert to fraction form
49,569,918.87/68,403,489.30 = 27,542,665.11/x - Step 3: Cross multiply
49,569,918.87x = 68,403,489.30 × 27,542,665.11 - Step 4: Simplify right side
49,569,918.87x = 1,884,014,398,145,368.25 - Step 5: Solve for x
x = 1,884,014,398,145,368.25/49,569,918.87 - Step 6: Final answer
x = 38,007,211.65
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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.