Finding the Fourth Proportional to 12,798,463.48, 19,202,530.20 and 7,684,459.23
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Solution
The fourth proportional to 12,798,463.48, 19,202,530.20 and 7,684,459.23 is: 11,529,591.87
Step by Step Solution
- Step 1: Write the proportion equation
12,798,463.48 : 19,202,530.20 = 7,684,459.23 : x - Step 2: Convert to fraction form
12,798,463.48/19,202,530.20 = 7,684,459.23/x - Step 3: Cross multiply
12,798,463.48x = 19,202,530.20 × 7,684,459.23 - Step 4: Simplify right side
12,798,463.48x = 147,561,060,434,743.75 - Step 5: Solve for x
x = 147,561,060,434,743.75/12,798,463.48 - Step 6: Final answer
x = 11,529,591.87
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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.