Finding the Fourth Proportional to 11,259,091.62, 15,538,985.40 and 6,297,808.68
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Solution
The fourth proportional to 11,259,091.62, 15,538,985.40 and 6,297,808.68 is: 8,691,780.87
Step by Step Solution
- Step 1: Write the proportion equation
11,259,091.62 : 15,538,985.40 = 6,297,808.68 : x - Step 2: Convert to fraction form
11,259,091.62/15,538,985.40 = 6,297,808.68/x - Step 3: Cross multiply
11,259,091.62x = 15,538,985.40 × 6,297,808.68 - Step 4: Simplify right side
11,259,091.62x = 97,861,557,130,513.27 - Step 5: Solve for x
x = 97,861,557,130,513.27/11,259,091.62 - Step 6: Final answer
x = 8,691,780.87
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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.