Finding the Fourth Proportional to 13,286,817.74, 18,335,808.36 and 7,175,245.70
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Solution
The fourth proportional to 13,286,817.74, 18,335,808.36 and 7,175,245.70 is: 9,901,839.00
Step by Step Solution
- Step 1: Write the proportion equation
13,286,817.74 : 18,335,808.36 = 7,175,245.70 : x - Step 2: Convert to fraction form
13,286,817.74/18,335,808.36 = 7,175,245.70/x - Step 3: Cross multiply
13,286,817.74x = 18,335,808.36 × 7,175,245.70 - Step 4: Simplify right side
13,286,817.74x = 131,563,930,091,114.05 - Step 5: Solve for x
x = 131,563,930,091,114.05/13,286,817.74 - Step 6: Final answer
x = 9,901,839.00
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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.