Finding the Fourth Proportional to 106,149,561.81, 146,531,593.58 and 71,362,430.25
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Solution
The fourth proportional to 106,149,561.81, 146,531,593.58 and 71,362,430.25 is: 98,510,539.73
Step by Step Solution
- Step 1: Write the proportion equation
106,149,561.81 : 146,531,593.58 = 71,362,430.25 : x - Step 2: Convert to fraction form
106,149,561.81/146,531,593.58 = 71,362,430.25/x - Step 3: Cross multiply
106,149,561.81x = 146,531,593.58 × 71,362,430.25 - Step 4: Simplify right side
106,149,561.81x = 10,456,850,626,274,098 - Step 5: Solve for x
x = 10,456,850,626,274,098/106,149,561.81 - Step 6: Final answer
x = 98,510,539.73
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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.