Finding the Fourth Proportional to 11,427,817.56, 15,770,843.12 and 6,271,363.68
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Solution
The fourth proportional to 11,427,817.56, 15,770,843.12 and 6,271,363.68 is: 8,654,731.51
Step by Step Solution
- Step 1: Write the proportion equation
11,427,817.56 : 15,770,843.12 = 6,271,363.68 : x - Step 2: Convert to fraction form
11,427,817.56/15,770,843.12 = 6,271,363.68/x - Step 3: Cross multiply
11,427,817.56x = 15,770,843.12 × 6,271,363.68 - Step 4: Simplify right side
11,427,817.56x = 98,904,692,745,745.88 - Step 5: Solve for x
x = 98,904,692,745,745.88/11,427,817.56 - Step 6: Final answer
x = 8,654,731.51
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.