Finding the Fourth Proportional to 23,415,021.66, 32,311,919.04 and 12,961,493.96
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Solution
The fourth proportional to 23,415,021.66, 32,311,919.04 and 12,961,493.96 is: 17,886,412.81
Step by Step Solution
- Step 1: Write the proportion equation
23,415,021.66 : 32,311,919.04 = 12,961,493.96 : x - Step 2: Convert to fraction form
23,415,021.66/32,311,919.04 = 12,961,493.96/x - Step 3: Cross multiply
23,415,021.66x = 32,311,919.04 × 12,961,493.96 - Step 4: Simplify right side
23,415,021.66x = 418,810,743,472,969 - Step 5: Solve for x
x = 418,810,743,472,969/23,415,021.66 - Step 6: Final answer
x = 17,886,412.81
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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.