Finding the Fourth Proportional to 12,237,568.40, 16,891,404.36 and 8,163,177.68
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Solution
The fourth proportional to 12,237,568.40, 16,891,404.36 and 8,163,177.68 is: 11,267,559.91
Step by Step Solution
- Step 1: Write the proportion equation
12,237,568.40 : 16,891,404.36 = 8,163,177.68 : x - Step 2: Convert to fraction form
12,237,568.40/16,891,404.36 = 8,163,177.68/x - Step 3: Cross multiply
12,237,568.40x = 16,891,404.36 × 8,163,177.68 - Step 4: Simplify right side
12,237,568.40x = 137,887,535,055,406.67 - Step 5: Solve for x
x = 137,887,535,055,406.67/12,237,568.40 - Step 6: Final answer
x = 11,267,559.91
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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.