Finding the Fourth Proportional to 19,431,471.55, 29,133,921.30 and 9,201,232.30
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Solution
The fourth proportional to 19,431,471.55, 29,133,921.30 and 9,201,232.30 is: 13,795,557.22
Step by Step Solution
- Step 1: Write the proportion equation
19,431,471.55 : 29,133,921.30 = 9,201,232.30 : x - Step 2: Convert to fraction form
19,431,471.55/29,133,921.30 = 9,201,232.30/x - Step 3: Cross multiply
19,431,471.55x = 29,133,921.30 × 9,201,232.30 - Step 4: Simplify right side
19,431,471.55x = 268,067,977,691,218.03 - Step 5: Solve for x
x = 268,067,977,691,218.03/19,431,471.55 - Step 6: Final answer
x = 13,795,557.22
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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.