Finding the Fourth Proportional to 13,082,649.68, 18,054,457.80 and 7,281,753.68
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Solution
The fourth proportional to 13,082,649.68, 18,054,457.80 and 7,281,753.68 is: 10,049,043.41
Step by Step Solution
- Step 1: Write the proportion equation
13,082,649.68 : 18,054,457.80 = 7,281,753.68 : x - Step 2: Convert to fraction form
13,082,649.68/18,054,457.80 = 7,281,753.68/x - Step 3: Cross multiply
13,082,649.68x = 18,054,457.80 × 7,281,753.68 - Step 4: Simplify right side
13,082,649.68x = 131,468,114,525,554.70 - Step 5: Solve for x
x = 131,468,114,525,554.70/13,082,649.68 - Step 6: Final answer
x = 10,049,043.41
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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.