Finding the Fourth Proportional to 13,574,055.70, 18,732,318.66 and 7,379,114.32
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Solution
The fourth proportional to 13,574,055.70, 18,732,318.66 and 7,379,114.32 is: 10,183,243.97
Step by Step Solution
- Step 1: Write the proportion equation
13,574,055.70 : 18,732,318.66 = 7,379,114.32 : x - Step 2: Convert to fraction form
13,574,055.70/18,732,318.66 = 7,379,114.32/x - Step 3: Cross multiply
13,574,055.70x = 18,732,318.66 × 7,379,114.32 - Step 4: Simplify right side
13,574,055.70x = 138,227,920,870,809.22 - Step 5: Solve for x
x = 138,227,920,870,809.22/13,574,055.70 - Step 6: Final answer
x = 10,183,243.97
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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.