Finding the Fourth Proportional to 87,915,108.97, 121,330,113.38 and 48,769,506.73
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Solution
The fourth proportional to 87,915,108.97, 121,330,113.38 and 48,769,506.73 is: 67,305,948.32
Step by Step Solution
- Step 1: Write the proportion equation
87,915,108.97 : 121,330,113.38 = 48,769,506.73 : x - Step 2: Convert to fraction form
87,915,108.97/121,330,113.38 = 48,769,506.73/x - Step 3: Cross multiply
87,915,108.97x = 121,330,113.38 × 48,769,506.73 - Step 4: Simplify right side
87,915,108.97x = 5,917,209,780,552,846 - Step 5: Solve for x
x = 5,917,209,780,552,846/87,915,108.97 - Step 6: Final answer
x = 67,305,948.32
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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.