Finding the Fourth Proportional to 12,390,195.37, 18,578,911.44 and 5,560,914.05
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Solution
The fourth proportional to 12,390,195.37, 18,578,911.44 and 5,560,914.05 is: 8,338,506.91
Step by Step Solution
- Step 1: Write the proportion equation
12,390,195.37 : 18,578,911.44 = 5,560,914.05 : x - Step 2: Convert to fraction form
12,390,195.37/18,578,911.44 = 5,560,914.05/x - Step 3: Cross multiply
12,390,195.37x = 18,578,911.44 × 5,560,914.05 - Step 4: Simplify right side
12,390,195.37x = 103,315,729,660,401.73 - Step 5: Solve for x
x = 103,315,729,660,401.73/12,390,195.37 - Step 6: Final answer
x = 8,338,506.91
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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.