Finding the Fourth Proportional to 28,585,433.42, 39,448,147.90 and 15,532,692.08
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Solution
The fourth proportional to 28,585,433.42, 39,448,147.90 and 15,532,692.08 is: 21,435,250.80
Step by Step Solution
- Step 1: Write the proportion equation
28,585,433.42 : 39,448,147.90 = 15,532,692.08 : x - Step 2: Convert to fraction form
28,585,433.42/39,448,147.90 = 15,532,692.08/x - Step 3: Cross multiply
28,585,433.42x = 39,448,147.90 × 15,532,692.08 - Step 4: Simplify right side
28,585,433.42x = 612,735,934,456,998.62 - Step 5: Solve for x
x = 612,735,934,456,998.62/28,585,433.42 - Step 6: Final answer
x = 21,435,250.80
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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.