Finding the Fourth Proportional to 39,930,153.22, 55,103,610.81 and 21,595,438.66
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Solution
The fourth proportional to 39,930,153.22, 55,103,610.81 and 21,595,438.66 is: 29,801,705.01
Step by Step Solution
- Step 1: Write the proportion equation
39,930,153.22 : 55,103,610.81 = 21,595,438.66 : x - Step 2: Convert to fraction form
39,930,153.22/55,103,610.81 = 21,595,438.66/x - Step 3: Cross multiply
39,930,153.22x = 55,103,610.81 × 21,595,438.66 - Step 4: Simplify right side
39,930,153.22x = 1,189,986,647,191,868 - Step 5: Solve for x
x = 1,189,986,647,191,868/39,930,153.22 - Step 6: Final answer
x = 29,801,705.01
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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.