Finding the Fourth Proportional to 19,552,390.19, 26,982,298.46 and 11,921,542.19
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Solution
The fourth proportional to 19,552,390.19, 26,982,298.46 and 11,921,542.19 is: 16,451,728.22
Step by Step Solution
- Step 1: Write the proportion equation
19,552,390.19 : 26,982,298.46 = 11,921,542.19 : x - Step 2: Convert to fraction form
19,552,390.19/26,982,298.46 = 11,921,542.19/x - Step 3: Cross multiply
19,552,390.19x = 26,982,298.46 × 11,921,542.19 - Step 4: Simplify right side
19,552,390.19x = 321,670,609,474,062 - Step 5: Solve for x
x = 321,670,609,474,062/19,552,390.19 - Step 6: Final answer
x = 16,451,728.22
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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.