Finding the Fourth Proportional to 757,375,074.80, 1,136,062,612.20 and 349,228,386.80
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Solution
The fourth proportional to 757,375,074.80, 1,136,062,612.20 and 349,228,386.80 is: 523,842,580.20
Step by Step Solution
- Step 1: Write the proportion equation
757,375,074.80 : 1,136,062,612.20 = 349,228,386.80 : x - Step 2: Convert to fraction form
757,375,074.80/1,136,062,612.20 = 349,228,386.80/x - Step 3: Cross multiply
757,375,074.80x = 1,136,062,612.20 × 349,228,386.80 - Step 4: Simplify right side
757,375,074.80x = 396,745,313,362,400,000 - Step 5: Solve for x
x = 396,745,313,362,400,000/757,375,074.80 - Step 6: Final answer
x = 523,842,580.20
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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.