Finding the Fourth Proportional to 20,705,771.08, 28,575,242.49 and 11,413,320.19
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Solution
The fourth proportional to 20,705,771.08, 28,575,242.49 and 11,413,320.19 is: 15,751,086.53
Step by Step Solution
- Step 1: Write the proportion equation
20,705,771.08 : 28,575,242.49 = 11,413,320.19 : x - Step 2: Convert to fraction form
20,705,771.08/28,575,242.49 = 11,413,320.19/x - Step 3: Cross multiply
20,705,771.08x = 28,575,242.49 × 11,413,320.19 - Step 4: Simplify right side
20,705,771.08x = 326,138,392,045,262.81 - Step 5: Solve for x
x = 326,138,392,045,262.81/20,705,771.08 - Step 6: Final answer
x = 15,751,086.53
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1.5x scale
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.