Finding the Fourth Proportional to 119,460,067.97, 164,863,179.29 and 72,419,124.21
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Solution
The fourth proportional to 119,460,067.97, 164,863,179.29 and 72,419,124.21 is: 99,943,414.25
Step by Step Solution
- Step 1: Write the proportion equation
119,460,067.97 : 164,863,179.29 = 72,419,124.21 : x - Step 2: Convert to fraction form
119,460,067.97/164,863,179.29 = 72,419,124.21/x - Step 3: Cross multiply
119,460,067.97x = 164,863,179.29 × 72,419,124.21 - Step 4: Simplify right side
119,460,067.97x = 11,939,247,059,148,176 - Step 5: Solve for x
x = 11,939,247,059,148,176/119,460,067.97 - Step 6: Final answer
x = 99,943,414.25
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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.