Finding the Fourth Proportional to 20,501,452.26, 28,292,055.02 and 11,209,621.95
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Solution
The fourth proportional to 20,501,452.26, 28,292,055.02 and 11,209,621.95 is: 15,469,306.12
Step by Step Solution
- Step 1: Write the proportion equation
20,501,452.26 : 28,292,055.02 = 11,209,621.95 : x - Step 2: Convert to fraction form
20,501,452.26/28,292,055.02 = 11,209,621.95/x - Step 3: Cross multiply
20,501,452.26x = 28,292,055.02 × 11,209,621.95 - Step 4: Simplify right side
20,501,452.26x = 317,143,240,906,751.56 - Step 5: Solve for x
x = 317,143,240,906,751.56/20,501,452.26 - Step 6: Final answer
x = 15,469,306.12
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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.