Finding the Fourth Proportional to 21,362,775.60, 32,044,163.40 and 15,652,081.20
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Solution
The fourth proportional to 21,362,775.60, 32,044,163.40 and 15,652,081.20 is: 23,478,121.80
Step by Step Solution
- Step 1: Write the proportion equation
21,362,775.60 : 32,044,163.40 = 15,652,081.20 : x - Step 2: Convert to fraction form
21,362,775.60/32,044,163.40 = 15,652,081.20/x - Step 3: Cross multiply
21,362,775.60x = 32,044,163.40 × 15,652,081.20 - Step 4: Simplify right side
21,362,775.60x = 501,557,847,522,868.06 - Step 5: Solve for x
x = 501,557,847,522,868.06/21,362,775.60 - Step 6: Final answer
x = 23,478,121.80
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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.