Finding the Fourth Proportional to 15,226,205.16, 21,013,491.79 and 8,352,015.83
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Solution
The fourth proportional to 15,226,205.16, 21,013,491.79 and 8,352,015.83 is: 11,526,510.66
Step by Step Solution
- Step 1: Write the proportion equation
15,226,205.16 : 21,013,491.79 = 8,352,015.83 : x - Step 2: Convert to fraction form
15,226,205.16/21,013,491.79 = 8,352,015.83/x - Step 3: Cross multiply
15,226,205.16x = 21,013,491.79 × 8,352,015.83 - Step 4: Simplify right side
15,226,205.16x = 175,505,016,073,655.03 - Step 5: Solve for x
x = 175,505,016,073,655.03/15,226,205.16 - Step 6: Final answer
x = 11,526,510.66
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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.