Finding the Fourth Proportional to 18,661,878.52, 27,988,618.74 and 6,694,614.52
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Solution
The fourth proportional to 18,661,878.52, 27,988,618.74 and 6,694,614.52 is: 10,040,415.45
Step by Step Solution
- Step 1: Write the proportion equation
18,661,878.52 : 27,988,618.74 = 6,694,614.52 : x - Step 2: Convert to fraction form
18,661,878.52/27,988,618.74 = 6,694,614.52/x - Step 3: Cross multiply
18,661,878.52x = 27,988,618.74 × 6,694,614.52 - Step 4: Simplify right side
18,661,878.52x = 187,373,013,411,548.09 - Step 5: Solve for x
x = 187,373,013,411,548.09/18,661,878.52 - Step 6: Final answer
x = 10,040,415.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.