Finding the Fourth Proportional to 83,122,907.20, 124,704,021.60 and 26,389,211.20
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Solution
The fourth proportional to 83,122,907.20, 124,704,021.60 and 26,389,211.20 is: 39,590,058.56
Step by Step Solution
- Step 1: Write the proportion equation
83,122,907.20 : 124,704,021.60 = 26,389,211.20 : x - Step 2: Convert to fraction form
83,122,907.20/124,704,021.60 = 26,389,211.20/x - Step 3: Cross multiply
83,122,907.20x = 124,704,021.60 × 26,389,211.20 - Step 4: Simplify right side
83,122,907.20x = 3,290,840,763,491,761.50 - Step 5: Solve for x
x = 3,290,840,763,491,761.50/83,122,907.20 - Step 6: Final answer
x = 39,590,058.56
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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.