Finding the Fourth Proportional to 20,117,416.76, 30,180,624.48 and 7,337,921.44
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Solution
The fourth proportional to 20,117,416.76, 30,180,624.48 and 7,337,921.44 is: 11,008,523.32
Step by Step Solution
- Step 1: Write the proportion equation
20,117,416.76 : 30,180,624.48 = 7,337,921.44 : x - Step 2: Convert to fraction form
20,117,416.76/30,180,624.48 = 7,337,921.44/x - Step 3: Cross multiply
20,117,416.76x = 30,180,624.48 × 7,337,921.44 - Step 4: Simplify right side
20,117,416.76x = 221,463,051,444,380.88 - Step 5: Solve for x
x = 221,463,051,444,380.88/20,117,416.76 - Step 6: Final answer
x = 11,008,523.32
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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.