Finding the Fourth Proportional to 11,877,765.75, 16,391,360.49 and 6,445,257.75
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Solution
The fourth proportional to 11,877,765.75, 16,391,360.49 and 6,445,257.75 is: 8,894,479.44
Step by Step Solution
- Step 1: Write the proportion equation
11,877,765.75 : 16,391,360.49 = 6,445,257.75 : x - Step 2: Convert to fraction form
11,877,765.75/16,391,360.49 = 6,445,257.75/x - Step 3: Cross multiply
11,877,765.75x = 16,391,360.49 × 6,445,257.75 - Step 4: Simplify right side
11,877,765.75x = 105,646,543,231,216.30 - Step 5: Solve for x
x = 105,646,543,231,216.30/11,877,765.75 - Step 6: Final answer
x = 8,894,479.44
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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.