Finding the Fourth Proportional to 87,260,248.80, 120,419,981.46 and 48,103,426.44
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Solution
The fourth proportional to 87,260,248.80, 120,419,981.46 and 48,103,426.44 is: 66,383,190.51
Step by Step Solution
- Step 1: Write the proportion equation
87,260,248.80 : 120,419,981.46 = 48,103,426.44 : x - Step 2: Convert to fraction form
87,260,248.80/120,419,981.46 = 48,103,426.44/x - Step 3: Cross multiply
87,260,248.80x = 120,419,981.46 × 48,103,426.44 - Step 4: Simplify right side
87,260,248.80x = 5,792,613,720,067,273 - Step 5: Solve for x
x = 5,792,613,720,067,273/87,260,248.80 - Step 6: Final answer
x = 66,383,190.51
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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.