Finding the Fourth Proportional to 18,354,704.28, 27,507,255.12 and 6,988,952.76
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Solution
The fourth proportional to 18,354,704.28, 27,507,255.12 and 6,988,952.76 is: 10,473,985.51
Step by Step Solution
- Step 1: Write the proportion equation
18,354,704.28 : 27,507,255.12 = 6,988,952.76 : x - Step 2: Convert to fraction form
18,354,704.28/27,507,255.12 = 6,988,952.76/x - Step 3: Cross multiply
18,354,704.28x = 27,507,255.12 × 6,988,952.76 - Step 4: Simplify right side
18,354,704.28x = 192,246,906,590,948.12 - Step 5: Solve for x
x = 192,246,906,590,948.12/18,354,704.28 - Step 6: Final answer
x = 10,473,985.51
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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.