Finding the Fourth Proportional to 8,972,447.80, 13,458,671.70 and 5,193,311.80
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Solution
The fourth proportional to 8,972,447.80, 13,458,671.70 and 5,193,311.80 is: 7,789,967.70
Step by Step Solution
- Step 1: Write the proportion equation
8,972,447.80 : 13,458,671.70 = 5,193,311.80 : x - Step 2: Convert to fraction form
8,972,447.80/13,458,671.70 = 5,193,311.80/x - Step 3: Cross multiply
8,972,447.80x = 13,458,671.70 × 5,193,311.80 - Step 4: Simplify right side
8,972,447.80x = 69,895,078,551,936.05 - Step 5: Solve for x
x = 69,895,078,551,936.05/8,972,447.80 - Step 6: Final answer
x = 7,789,967.70
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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.