Finding the Fourth Proportional to 20,242,553.11, 27,905,668.83 and 14,431,245.79
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Solution
The fourth proportional to 20,242,553.11, 27,905,668.83 and 14,431,245.79 is: 19,894,405.79
Step by Step Solution
- Step 1: Write the proportion equation
20,242,553.11 : 27,905,668.83 = 14,431,245.79 : x - Step 2: Convert to fraction form
20,242,553.11/27,905,668.83 = 14,431,245.79/x - Step 3: Cross multiply
20,242,553.11x = 27,905,668.83 × 14,431,245.79 - Step 4: Simplify right side
20,242,553.11x = 402,713,565,820,071.69 - Step 5: Solve for x
x = 402,713,565,820,071.69/20,242,553.11 - Step 6: Final answer
x = 19,894,405.79
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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.