Finding the Fourth Proportional to 39,930,229.50, 55,103,716.80 and 21,595,515
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Solution
The fourth proportional to 39,930,229.50, 55,103,716.80 and 21,595,515 is: 29,801,810.75
Step by Step Solution
- Step 1: Write the proportion equation
39,930,229.50 : 55,103,716.80 = 21,595,515 : x - Step 2: Convert to fraction form
39,930,229.50/55,103,716.80 = 21,595,515/x - Step 3: Cross multiply
39,930,229.50x = 55,103,716.80 × 21,595,515 - Step 4: Simplify right side
39,930,229.50x = 1,189,993,142,710,152 - Step 5: Solve for x
x = 1,189,993,142,710,152/39,930,229.50 - Step 6: Final answer
x = 29,801,810.75
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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.