Finding the Fourth Proportional to 17,717,163.20, 26,607,237.60 and 12,930,257.60
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Solution
The fourth proportional to 17,717,163.20, 26,607,237.60 and 12,930,257.60 is: 19,418,370.33
Step by Step Solution
- Step 1: Write the proportion equation
17,717,163.20 : 26,607,237.60 = 12,930,257.60 : x - Step 2: Convert to fraction form
17,717,163.20/26,607,237.60 = 12,930,257.60/x - Step 3: Cross multiply
17,717,163.20x = 26,607,237.60 × 12,930,257.60 - Step 4: Simplify right side
17,717,163.20x = 344,038,436,192,405.75 - Step 5: Solve for x
x = 344,038,436,192,405.75/17,717,163.20 - Step 6: Final answer
x = 19,418,370.33
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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.