Finding the Fourth Proportional to 39,436,142.58, 54,420,874.17 and 22,032,618.50
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Solution
The fourth proportional to 39,436,142.58, 54,420,874.17 and 22,032,618.50 is: 30,404,453.39
Step by Step Solution
- Step 1: Write the proportion equation
39,436,142.58 : 54,420,874.17 = 22,032,618.50 : x - Step 2: Convert to fraction form
39,436,142.58/54,420,874.17 = 22,032,618.50/x - Step 3: Cross multiply
39,436,142.58x = 54,420,874.17 × 22,032,618.50 - Step 4: Simplify right side
39,436,142.58x = 1,199,034,359,024,114.25 - Step 5: Solve for x
x = 1,199,034,359,024,114.25/39,436,142.58 - Step 6: Final answer
x = 30,404,453.39
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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.