Finding the Fourth Proportional to 11,278,374.84, 15,563,738.52 and 6,121,625.40
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Solution
The fourth proportional to 11,278,374.84, 15,563,738.52 and 6,121,625.40 is: 8,447,615.76
Step by Step Solution
- Step 1: Write the proportion equation
11,278,374.84 : 15,563,738.52 = 6,121,625.40 : x - Step 2: Convert to fraction form
11,278,374.84/15,563,738.52 = 6,121,625.40/x - Step 3: Cross multiply
11,278,374.84x = 15,563,738.52 × 6,121,625.40 - Step 4: Simplify right side
11,278,374.84x = 95,275,377,042,990.41 - Step 5: Solve for x
x = 95,275,377,042,990.41/11,278,374.84 - Step 6: Final answer
x = 8,447,615.76
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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.