Finding the Fourth Proportional to 15,180,624.24, 20,948,902.20 and 8,305,162.80
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Solution
The fourth proportional to 15,180,624.24, 20,948,902.20 and 8,305,162.80 is: 11,460,928.12
Step by Step Solution
- Step 1: Write the proportion equation
15,180,624.24 : 20,948,902.20 = 8,305,162.80 : x - Step 2: Convert to fraction form
15,180,624.24/20,948,902.20 = 8,305,162.80/x - Step 3: Cross multiply
15,180,624.24x = 20,948,902.20 × 8,305,162.80 - Step 4: Simplify right side
15,180,624.24x = 173,984,043,252,278.16 - Step 5: Solve for x
x = 173,984,043,252,278.16/15,180,624.24 - Step 6: Final answer
x = 11,460,928.12
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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.