Finding the Fourth Proportional to 38,850,684.48, 53,614,060.65 and 21,209,614.70
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Solution
The fourth proportional to 38,850,684.48, 53,614,060.65 and 21,209,614.70 is: 29,269,331.64
Step by Step Solution
- Step 1: Write the proportion equation
38,850,684.48 : 53,614,060.65 = 21,209,614.70 : x - Step 2: Convert to fraction form
38,850,684.48/53,614,060.65 = 21,209,614.70/x - Step 3: Cross multiply
38,850,684.48x = 53,614,060.65 × 21,209,614.70 - Step 4: Simplify right side
38,850,684.48x = 1,137,133,568,620,861.25 - Step 5: Solve for x
x = 1,137,133,568,620,861.25/38,850,684.48 - Step 6: Final answer
x = 29,269,331.64
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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.