Finding the Fourth Proportional to 757,804,922.40, 1,136,707,383.60 and 512,916,909.60
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Solution
The fourth proportional to 757,804,922.40, 1,136,707,383.60 and 512,916,909.60 is: 769,375,364.40
Step by Step Solution
- Step 1: Write the proportion equation
757,804,922.40 : 1,136,707,383.60 = 512,916,909.60 : x - Step 2: Convert to fraction form
757,804,922.40/1,136,707,383.60 = 512,916,909.60/x - Step 3: Cross multiply
757,804,922.40x = 1,136,707,383.60 × 512,916,909.60 - Step 4: Simplify right side
757,804,922.40x = 583,036,438,315,613,696 - Step 5: Solve for x
x = 583,036,438,315,613,696/757,804,922.40 - Step 6: Final answer
x = 769,375,364.40
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1.5x scale
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.