Finding the Fourth Proportional to 18,181,174.12, 25,090,552.68 and 9,921,768.62
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Solution
The fourth proportional to 18,181,174.12, 25,090,552.68 and 9,921,768.62 is: 13,692,331.23
Step by Step Solution
- Step 1: Write the proportion equation
18,181,174.12 : 25,090,552.68 = 9,921,768.62 : x - Step 2: Convert to fraction form
18,181,174.12/25,090,552.68 = 9,921,768.62/x - Step 3: Cross multiply
18,181,174.12x = 25,090,552.68 × 9,921,768.62 - Step 4: Simplify right side
18,181,174.12x = 248,942,658,238,880.88 - Step 5: Solve for x
x = 248,942,658,238,880.88/18,181,174.12 - Step 6: Final answer
x = 13,692,331.23
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1.5x scale
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.