Finding the Fourth Proportional to 13,285,693.80, 19,928,540.70 and 4,310,245.80
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Solution
The fourth proportional to 13,285,693.80, 19,928,540.70 and 4,310,245.80 is: 6,465,368.70
Step by Step Solution
- Step 1: Write the proportion equation
13,285,693.80 : 19,928,540.70 = 4,310,245.80 : x - Step 2: Convert to fraction form
13,285,693.80/19,928,540.70 = 4,310,245.80/x - Step 3: Cross multiply
13,285,693.80x = 19,928,540.70 × 4,310,245.80 - Step 4: Simplify right side
13,285,693.80x = 85,896,908,852,304.05 - Step 5: Solve for x
x = 85,896,908,852,304.05/13,285,693.80 - Step 6: Final answer
x = 6,465,368.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.