Finding the Fourth Proportional to 273,170,918.94, 409,697,669.97 and 86,439,659.46
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Solution
The fourth proportional to 273,170,918.94, 409,697,669.97 and 86,439,659.46 is: 129,640,912.04
Step by Step Solution
- Step 1: Write the proportion equation
273,170,918.94 : 409,697,669.97 = 86,439,659.46 : x - Step 2: Convert to fraction form
273,170,918.94/409,697,669.97 = 86,439,659.46/x - Step 3: Cross multiply
273,170,918.94x = 409,697,669.97 × 86,439,659.46 - Step 4: Simplify right side
273,170,918.94x = 35,414,127,073,762,268 - Step 5: Solve for x
x = 35,414,127,073,762,268/273,170,918.94 - Step 6: Final answer
x = 129,640,912.04
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.