Finding the Fourth Proportional to 11,381,753.68, 15,705,866.24 and 6,419,920.84
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Solution
The fourth proportional to 11,381,753.68, 15,705,866.24 and 6,419,920.84 is: 8,858,952.74
Step by Step Solution
- Step 1: Write the proportion equation
11,381,753.68 : 15,705,866.24 = 6,419,920.84 : x - Step 2: Convert to fraction form
11,381,753.68/15,705,866.24 = 6,419,920.84/x - Step 3: Cross multiply
11,381,753.68x = 15,705,866.24 × 6,419,920.84 - Step 4: Simplify right side
11,381,753.68x = 100,830,417,984,428.44 - Step 5: Solve for x
x = 100,830,417,984,428.44/11,381,753.68 - Step 6: Final answer
x = 8,858,952.74
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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.