Finding the Fourth Proportional to 21,515,252.80, 32,272,879.20 and 8,050,331.20
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Solution
The fourth proportional to 21,515,252.80, 32,272,879.20 and 8,050,331.20 is: 12,075,496.80
Step by Step Solution
- Step 1: Write the proportion equation
21,515,252.80 : 32,272,879.20 = 8,050,331.20 : x - Step 2: Convert to fraction form
21,515,252.80/32,272,879.20 = 8,050,331.20/x - Step 3: Cross multiply
21,515,252.80x = 32,272,879.20 × 8,050,331.20 - Step 4: Simplify right side
21,515,252.80x = 259,807,366,337,591.03 - Step 5: Solve for x
x = 259,807,366,337,591.03/21,515,252.80 - Step 6: Final answer
x = 12,075,496.80
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1.5x scale
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.