Finding the Fourth Proportional to 19,969,243.20, 29,936,368.80 and 13,558,708.80
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Solution
The fourth proportional to 19,969,243.20, 29,936,368.80 and 13,558,708.80 is: 20,326,183.77
Step by Step Solution
- Step 1: Write the proportion equation
19,969,243.20 : 29,936,368.80 = 13,558,708.80 : x - Step 2: Convert to fraction form
19,969,243.20/29,936,368.80 = 13,558,708.80/x - Step 3: Cross multiply
19,969,243.20x = 29,936,368.80 × 13,558,708.80 - Step 4: Simplify right side
19,969,243.20x = 405,898,507,088,605.50 - Step 5: Solve for x
x = 405,898,507,088,605.50/19,969,243.20 - Step 6: Final answer
x = 20,326,183.77
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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.