Finding the Fourth Proportional to 28,430,356.12, 39,230,573.87 and 16,040,645.73
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Solution
The fourth proportional to 28,430,356.12, 39,230,573.87 and 16,040,645.73 is: 22,134,219.31
Step by Step Solution
- Step 1: Write the proportion equation
28,430,356.12 : 39,230,573.87 = 16,040,645.73 : x - Step 2: Convert to fraction form
28,430,356.12/39,230,573.87 = 16,040,645.73/x - Step 3: Cross multiply
28,430,356.12x = 39,230,573.87 × 16,040,645.73 - Step 4: Simplify right side
28,430,356.12x = 629,283,737,273,366.75 - Step 5: Solve for x
x = 629,283,737,273,366.75/28,430,356.12 - Step 6: Final answer
x = 22,134,219.31
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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.