Finding the Fourth Proportional to 13,902,386.40, 20,855,134.80 and 4,317,688.80
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Solution
The fourth proportional to 13,902,386.40, 20,855,134.80 and 4,317,688.80 is: 6,477,016.20
Step by Step Solution
- Step 1: Write the proportion equation
13,902,386.40 : 20,855,134.80 = 4,317,688.80 : x - Step 2: Convert to fraction form
13,902,386.40/20,855,134.80 = 4,317,688.80/x - Step 3: Cross multiply
13,902,386.40x = 20,855,134.80 × 4,317,688.80 - Step 4: Simplify right side
13,902,386.40x = 90,045,981,948,450.23 - Step 5: Solve for x
x = 90,045,981,948,450.23/13,902,386.40 - Step 6: Final answer
x = 6,477,016.20
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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.