Finding the Fourth Proportional to 145,883,524.65, 201,318,662.08 and 78,902,557.57
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Solution
The fourth proportional to 145,883,524.65, 201,318,662.08 and 78,902,557.57 is: 108,885,203.88
Step by Step Solution
- Step 1: Write the proportion equation
145,883,524.65 : 201,318,662.08 = 78,902,557.57 : x - Step 2: Convert to fraction form
145,883,524.65/201,318,662.08 = 78,902,557.57/x - Step 3: Cross multiply
145,883,524.65x = 201,318,662.08 × 78,902,557.57 - Step 4: Simplify right side
145,883,524.65x = 15,884,557,324,682,576 - Step 5: Solve for x
x = 15,884,557,324,682,576/145,883,524.65 - Step 6: Final answer
x = 108,885,203.88
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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.