Finding the Fourth Proportional to 358,380,203.91, 494,589,537.88 and 217,257,372.64
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Solution
The fourth proportional to 358,380,203.91, 494,589,537.88 and 217,257,372.64 is: 299,830,242.74
Step by Step Solution
- Step 1: Write the proportion equation
358,380,203.91 : 494,589,537.88 = 217,257,372.64 : x - Step 2: Convert to fraction form
358,380,203.91/494,589,537.88 = 217,257,372.64/x - Step 3: Cross multiply
358,380,203.91x = 494,589,537.88 × 217,257,372.64 - Step 4: Simplify right side
358,380,203.91x = 107,453,223,532,336,064 - Step 5: Solve for x
x = 107,453,223,532,336,064/358,380,203.91 - Step 6: Final answer
x = 299,830,242.74
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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.