Finding the Fourth Proportional to 6,240,874,823.46, 8,612,405,178.21 and 3,421,422,212.94
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Solution
The fourth proportional to 6,240,874,823.46, 8,612,405,178.21 and 3,421,422,212.94 is: 4,721,561,514.55
Step by Step Solution
- Step 1: Write the proportion equation
6,240,874,823.46 : 8,612,405,178.21 = 3,421,422,212.94 : x - Step 2: Convert to fraction form
6,240,874,823.46/8,612,405,178.21 = 3,421,422,212.94/x - Step 3: Cross multiply
6,240,874,823.46x = 8,612,405,178.21 × 3,421,422,212.94 - Step 4: Simplify right side
6,240,874,823.46x = 29,466,674,383,567,171,584 - Step 5: Solve for x
x = 29,466,674,383,567,171,584/6,240,874,823.46 - Step 6: Final answer
x = 4,721,561,514.55
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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.