Finding the Fourth Proportional to 9,578,049.80, 14,367,074.70 and 7,877,438.60
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Solution
The fourth proportional to 9,578,049.80, 14,367,074.70 and 7,877,438.60 is: 11,816,157.90
Step by Step Solution
- Step 1: Write the proportion equation
9,578,049.80 : 14,367,074.70 = 7,877,438.60 : x - Step 2: Convert to fraction form
9,578,049.80/14,367,074.70 = 7,877,438.60/x - Step 3: Cross multiply
9,578,049.80x = 14,367,074.70 × 7,877,438.60 - Step 4: Simplify right side
9,578,049.80x = 113,175,748,810,863.41 - Step 5: Solve for x
x = 113,175,748,810,863.41/9,578,049.80 - Step 6: Final answer
x = 11,816,157.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.