Finding the Fourth Proportional to 372,189,389.67, 513,617,138.12 and 204,922,235.07
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Solution
The fourth proportional to 372,189,389.67, 513,617,138.12 and 204,922,235.07 is: 282,790,361.13
Step by Step Solution
- Step 1: Write the proportion equation
372,189,389.67 : 513,617,138.12 = 204,922,235.07 : x - Step 2: Convert to fraction form
372,189,389.67/513,617,138.12 = 204,922,235.07/x - Step 3: Cross multiply
372,189,389.67x = 513,617,138.12 × 204,922,235.07 - Step 4: Simplify right side
372,189,389.67x = 105,251,571,914,319,600 - Step 5: Solve for x
x = 105,251,571,914,319,600/372,189,389.67 - Step 6: Final answer
x = 282,790,361.13
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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.