Finding the Fourth Proportional to 11,982,953.40, 17,972,658.36 and 4,408,147.68
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Solution
The fourth proportional to 11,982,953.40, 17,972,658.36 and 4,408,147.68 is: 6,611,569.75
Step by Step Solution
- Step 1: Write the proportion equation
11,982,953.40 : 17,972,658.36 = 4,408,147.68 : x - Step 2: Convert to fraction form
11,982,953.40/17,972,658.36 = 4,408,147.68/x - Step 3: Cross multiply
11,982,953.40x = 17,972,658.36 × 4,408,147.68 - Step 4: Simplify right side
11,982,953.40x = 79,226,132,253,066.59 - Step 5: Solve for x
x = 79,226,132,253,066.59/11,982,953.40 - Step 6: Final answer
x = 6,611,569.75
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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.