Finding the Fourth Proportional to 18,661,881.02, 27,988,622.49 and 6,694,617.02
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Solution
The fourth proportional to 18,661,881.02, 27,988,622.49 and 6,694,617.02 is: 10,040,419.20
Step by Step Solution
- Step 1: Write the proportion equation
18,661,881.02 : 27,988,622.49 = 6,694,617.02 : x - Step 2: Convert to fraction form
18,661,881.02/27,988,622.49 = 6,694,617.02/x - Step 3: Cross multiply
18,661,881.02x = 27,988,622.49 × 6,694,617.02 - Step 4: Simplify right side
18,661,881.02x = 187,373,108,487,908.75 - Step 5: Solve for x
x = 187,373,108,487,908.75/18,661,881.02 - Step 6: Final answer
x = 10,040,419.20
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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.