Finding the Fourth Proportional to 20,535,249.04, 28,338,979.26 and 11,242,664.08
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Solution
The fourth proportional to 20,535,249.04, 28,338,979.26 and 11,242,664.08 is: 15,515,060.16
Step by Step Solution
- Step 1: Write the proportion equation
20,535,249.04 : 28,338,979.26 = 11,242,664.08 : x - Step 2: Convert to fraction form
20,535,249.04/28,338,979.26 = 11,242,664.08/x - Step 3: Cross multiply
20,535,249.04x = 28,338,979.26 × 11,242,664.08 - Step 4: Simplify right side
20,535,249.04x = 318,605,624,190,267 - Step 5: Solve for x
x = 318,605,624,190,267/20,535,249.04 - Step 6: Final answer
x = 15,515,060.16
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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.