Finding the Fourth Proportional to 21,516,603.20, 32,274,904.80 and 7,869,723.20
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Solution
The fourth proportional to 21,516,603.20, 32,274,904.80 and 7,869,723.20 is: 11,804,584.80
Step by Step Solution
- Step 1: Write the proportion equation
21,516,603.20 : 32,274,904.80 = 7,869,723.20 : x - Step 2: Convert to fraction form
21,516,603.20/32,274,904.80 = 7,869,723.20/x - Step 3: Cross multiply
21,516,603.20x = 32,274,904.80 × 7,869,723.20 - Step 4: Simplify right side
21,516,603.20x = 253,994,567,082,351.38 - Step 5: Solve for x
x = 253,994,567,082,351.38/21,516,603.20 - Step 6: Final answer
x = 11,804,584.80
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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.