Finding the Fourth Proportional to 18,354,673.51, 27,507,208.98 and 6,988,921.99
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Solution
The fourth proportional to 18,354,673.51, 27,507,208.98 and 6,988,921.99 is: 10,473,939.38
Step by Step Solution
- Step 1: Write the proportion equation
18,354,673.51 : 27,507,208.98 = 6,988,921.99 : x - Step 2: Convert to fraction form
18,354,673.51/27,507,208.98 = 6,988,921.99/x - Step 3: Cross multiply
18,354,673.51x = 27,507,208.98 × 6,988,921.99 - Step 4: Simplify right side
18,354,673.51x = 192,245,737,723,847.47 - Step 5: Solve for x
x = 192,245,737,723,847.47/18,354,673.51 - Step 6: Final answer
x = 10,473,939.38
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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.