Finding the Fourth Proportional to 7,992,631.92, 11,985,792.12 and 3,199,427.76
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Solution
The fourth proportional to 7,992,631.92, 11,985,792.12 and 3,199,427.76 is: 4,797,878.40
Step by Step Solution
- Step 1: Write the proportion equation
7,992,631.92 : 11,985,792.12 = 3,199,427.76 : x - Step 2: Convert to fraction form
7,992,631.92/11,985,792.12 = 3,199,427.76/x - Step 3: Cross multiply
7,992,631.92x = 11,985,792.12 × 3,199,427.76 - Step 4: Simplify right side
7,992,631.92x = 38,347,676,034,317.24 - Step 5: Solve for x
x = 38,347,676,034,317.24/7,992,631.92 - Step 6: Final answer
x = 4,797,878.40
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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.