Finding the Fourth Proportional to 816,115,535.40, 1,224,332,735.40 and 324,745,186.80
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Solution
The fourth proportional to 816,115,535.40, 1,224,332,735.40 and 324,745,186.80 is: 487,181,220.82
Step by Step Solution
- Step 1: Write the proportion equation
816,115,535.40 : 1,224,332,735.40 = 324,745,186.80 : x - Step 2: Convert to fraction form
816,115,535.40/1,224,332,735.40 = 324,745,186.80/x - Step 3: Cross multiply
816,115,535.40x = 1,224,332,735.40 × 324,745,186.80 - Step 4: Simplify right side
816,115,535.40x = 397,596,162,862,828,032 - Step 5: Solve for x
x = 397,596,162,862,828,032/816,115,535.40 - Step 6: Final answer
x = 487,181,220.82
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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.