Finding the Fourth Proportional to 18,354,700.32, 27,507,249.12 and 6,988,948.80
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Solution
The fourth proportional to 18,354,700.32, 27,507,249.12 and 6,988,948.80 is: 10,473,979.55
Step by Step Solution
- Step 1: Write the proportion equation
18,354,700.32 : 27,507,249.12 = 6,988,948.80 : x - Step 2: Convert to fraction form
18,354,700.32/27,507,249.12 = 6,988,948.80/x - Step 3: Cross multiply
18,354,700.32x = 27,507,249.12 × 6,988,948.80 - Step 4: Simplify right side
18,354,700.32x = 192,246,755,728,525.06 - Step 5: Solve for x
x = 192,246,755,728,525.06/18,354,700.32 - Step 6: Final answer
x = 10,473,979.55
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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.