Finding the Fourth Proportional to 358,574,862.13, 494,828,279.78 and 199,811,676.64
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Solution
The fourth proportional to 358,574,862.13, 494,828,279.78 and 199,811,676.64 is: 275,737,310.88
Step by Step Solution
- Step 1: Write the proportion equation
358,574,862.13 : 494,828,279.78 = 199,811,676.64 : x - Step 2: Convert to fraction form
358,574,862.13/494,828,279.78 = 199,811,676.64/x - Step 3: Cross multiply
358,574,862.13x = 494,828,279.78 × 199,811,676.64 - Step 4: Simplify right side
358,574,862.13x = 98,872,468,232,511,120 - Step 5: Solve for x
x = 98,872,468,232,511,120/358,574,862.13 - Step 6: Final answer
x = 275,737,310.88
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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.