Finding the Fourth Proportional to 20,108,247.96, 27,752,228.46 and 11,408,575.80
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Solution
The fourth proportional to 20,108,247.96, 27,752,228.46 and 11,408,575.80 is: 15,745,449.46
Step by Step Solution
- Step 1: Write the proportion equation
20,108,247.96 : 27,752,228.46 = 11,408,575.80 : x - Step 2: Convert to fraction form
20,108,247.96/27,752,228.46 = 11,408,575.80/x - Step 3: Cross multiply
20,108,247.96x = 27,752,228.46 × 11,408,575.80 - Step 4: Simplify right side
20,108,247.96x = 316,613,402,004,827.31 - Step 5: Solve for x
x = 316,613,402,004,827.31/20,108,247.96 - Step 6: Final answer
x = 15,745,449.46
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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.