Finding the Fourth Proportional to 22,556,437.92, 31,127,915.84 and 12,243,163.36
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Solution
The fourth proportional to 22,556,437.92, 31,127,915.84 and 12,243,163.36 is: 16,895,582.54
Step by Step Solution
- Step 1: Write the proportion equation
22,556,437.92 : 31,127,915.84 = 12,243,163.36 : x - Step 2: Convert to fraction form
22,556,437.92/31,127,915.84 = 12,243,163.36/x - Step 3: Cross multiply
22,556,437.92x = 31,127,915.84 × 12,243,163.36 - Step 4: Simplify right side
22,556,437.92x = 381,104,158,685,451.62 - Step 5: Solve for x
x = 381,104,158,685,451.62/22,556,437.92 - Step 6: Final answer
x = 16,895,582.54
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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.